We love DIY projects here at Lifehacker. Whether we’re building computers, backyard projects, or turning office supplies into artillery, we’re always tinkering. Today we’re taking a peek at the most popular DIY projects of 2009.

Create Your Own Sun Jar: Lifehacker Edition

Inspired by a tutorial we posted last year, we decided to make our own DIY sun jars. The trendy summer time lighting accessory retails for $30+ but we were able to make ours for around $10 each. The sun jars proved to be our most popular non-computer DIY of the entire year and readers shared their own creations with us.

The First-Timer’s Guide to Building a Computer from Scratch

Building your own computer is a great way to get exactly what you want, the way you want it, without being constrained by the limits and high-prices of mass produced computers. We showed you how to build a computer from start to finish and have fun doing it.

Turn a Sharpie into a Liquid Fueled Rocket

What’s standing between you and some office mayhem? Certainly not a lack of Sharpie markers and keyboard dusting spray. Combine the two with this fun DIY project and you’ve got one of the most awesome pieces of office-machinery we’ve ever featured.

Properly Erase Your Physical Media

You need to be properly erasing your physical media: all the time, every time. Our guide will show you how to get the job done and done right whether you use software to scrub your disks or you send them to the great data mine in the sky with a 21-gun salute.

Turn an Old Laptop into a Wall-Mounted Computer

Why settle for a digital picture frame when, in the same wall space, you could mount an entirely functional computer/slideshow player/TV tuner? One Lifehacker reader turned an old laptop into a super-charged digital frame.

$8 DIY Aluminum Laptop Stand

We’ve always been keen on DIY laptop stands, but reader Aaron Kravitz—inspired by an attractive $50 stand—went above and beyond, creating one of the most attractive DIY laptop stands we’ve featured to date.

Build an IKEA NAS On the Cheap

If the Hive Five on best home server software got you excited about setting up a home server but you’re not keen on another unsightly PC in your home, check out this DIY IKEA NAS.

Build a DIY Portable Air Conditioner

We’ve shown you how to make an air conditioner (even for as low as $30), but what if you wanted something you can put in your car and take with you? While it’s no substitute for a fully-charged and factory-fresh AC system, it’ll keep you cool.

Turn a Bookshelf into a Secret Passage

Who hasn’t dreamed of having a mystery-story-style secret passageway? While a trick bookshelf is pretty awesome in itself, this secret passage hides a home office with clever style. One industrious Lifehacker reader and his girlfriend had grown tired of seeing their office from their living space, so they hid it behind a wall of books.

Wire Your House with Ethernet Cable

You’ve ripped a movie on your laptop, and now want it on that fancy new home theater PC next to your TV. If you’ve got the time, wiring your house with Cat-5e cable could make transfer times a distant memory.

Rain Gutters as Cable Management Tools

We’re all about creative cable management here at Lifehacker, so we were instantly drawn to reader Seandavid010‘s rain-gutter cable management setup. He was awesome enough to send detailed photos and step by step instructions to help other readers recreate his setup.

Build Your Own DTV Antenna

The lights went out on analog television this year and we were there with a guide to help you build a great DIY antenna for boosting your reception and getting that crisp digital picture you crave.

DIY Laptop Rack Hack Turns Your Monitor into an iMac

Lifehacker reader Matt Lumpkin saw our monitor stand from door stoppers post and thought we might like his laptop rack hack as another space-saving desktop solution for laptop-lovers. He was right.

Build Your Own Pizza Oven

Suppose you were inspired by the cheap DIY home pizza oven—but weren’t so sure your home insurance would cover oven modifications. It’s time to build a safer, more eye-pleasing oven, and we’ve got a thorough guide.

Crack a Master Combination Padlock Redux

Two years ago we highlighted how to crack a Master combination padlock for those of you who may have lost the combination to your bulletproof lock; now designer Mark Campos has turned the tried-and-true instructions into an easier-to-follow visual guide.

DIY Invisible Floating Bookshelves

We’ve covered the invisible floating bookshelf once or twice before, but if you liked the idea but weren’t keen on ruining a book in the process, weblog May December Home’s got you covered.

DIY Inverted Bookshelf

Instead of storing your books upright on top of the shelf, the inverted bookshelf holds all of your books in place using elastic webbing so you can hang them below the shelf—all the while allowing you to still take them out and put them back on as needed.

Build an Under-the-Cabinet Kitchen PC from an Old Laptop

Inspired by our guide to giving an old laptop new life with cheap or free projects, Lifehacker reader Brian turned his aging Dell laptop into an incredible under-the-cabinet kitchen PC.

Turn Storage Containers into Self Watering Tomato Planters

If you’d like to have delicious home-grown tomatoes but lack a garden to grow them in, you’ll definitely want to check out this ingenious and inexpensive self-watering system.

Deter Thieves by Uglifying Your Camera

A few years ago, blogger Jimmie Rodgers’s camera was stolen while volunteering in an impoverished Brazilian community, so he did what any sane person would do: He bought a new camera and made it ugly. With his uglified camera, Rodgers was able to snap pictures freely during the rest of his trip without worrying too much that his ostensibly crappy camera would end up stolen.

DIY TV or Monitor Stand from Door Stoppers

Nothing adds space to a desk or home theater setup like a simple monitor or TV stand, and weblog IKEA Hacker details how to build your own stand on-the-cheap with a few inexpensive items from IKEA.

Repurpose Your Analog Television

You don’t need to run out and buy a new TV because of the DTV switchover. If you did anyways, Make Magazine has put together quite a guide to giving old TVs new life.

Use Ping-Pong Balls to Create Diffused Party Lights

If you need some cheap and novel ambient lighting for your next party, you’re only a box of ping-pong balls and a string of lights away from solving your lighting worries.

Build a Custom-Made BoxeeBox

DeviceGuru blogger Rick Lehrbaum, inspired by the cheaper set-top boxes, made his own higher-powered “BoxeeBox” for the free, open-source media center. He posted all the parts, the how-to details, and lots of pictures.

Build a Sturdy Cardboard Laptop Stand

You already shelled out your hard earned cash for a swanky laptop, why drop more cash on an overpriced laptop stand? Cardboard alone can do the trick, as detailed in this step-by-step tutorial.

Install Snow Leopard on Your Hackintosh PC, No Hacking Required

Earlier this year we put together a wildly popular guide to building a Hackintosh with Snow Leopard, start to finish, and then followed it up with an even easier guide to install Snow Leopard on your Hackintosh PC, no hacking required. Computers + DIY is all sorts of geeky fun waiting to happen.

Have a favorite DIY from 2009 that wasn’t highlighted here? Sound off in the comments with a link to your favorite project. Want to see more popular DIY guides courtesy of the ghost of Lifehacker past? Check out our huge DIY guide roundup from 2008.

If you’re lucky enough to live in the US, buying the super slim Adamo XPS is just a matter of hitting up Dell’s website — and then ponying up nearly $2,000, of course. Those in the UK, however, have been sorely out of luck. Luckily for them, we’re hearing that the much lusted-after laptop will be available at John Lewis department stores in time for holiday shopping. That’s right, this hinged baby — which boasts a 1.4GHz Core 2 Duo SU9400 processor, a 128GB SSD, a 13.4-inch WLED panel, a 2 megapixel camera, 4GB of DDR3 RAM, and GS45 integrated graphics — will be available there as of today, for the base price of £1750 (that’s about $2,800). For a better idea of what this bad boy looks like, check out our hands-on impressions video after the break.

Continue reading Dell Adamo XPS: Exclusive to John Lewis in the UK for the holiday season

Dell Adamo XPS: Exclusive to John Lewis in the UK for the holiday season originally appeared on Engadget on Thu, 10 Dec 2009 11:06:00 EST. Please see our terms for use of feeds.

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Continue reading Acer’s Ferrari One netbook now available — might not help you get a date

Acer’s Ferrari One netbook now available — might not help you get a date originally appeared on Engadget on Wed, 09 Dec 2009 12:01:00 EST. Please see our terms for use of feeds.

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Hey, you, your gadgets are disgusting. And wiping them with your greasy shirt sleeve isn’t making things any better. Here’s how to clean your gadgets, the right way.

HDTVs and Monitors

This is the number one cleaning question I get from friends and family, and it’s one of the simplest to answer. HDTVs and monitors are the worst kind of dirt magnets, begging to be touched—by your boss who wants to show you something on your computer screen, by your greasy little cousin who’s getting restless during his umpteenth viewing of Finding Nemo, by your drunk old buddy from college who somehow still thinks it’s funny to grope actresses onscreen on his way to the bathroom—and sitting in total vulnerability: in the case of your LCD screen, within sneezing range; in the case of your flatscreen TV, in your dusty living room.

The tempting, nearly instinctual response to a oily, dusty, mucousy panel of glass or glasslike material is to reach under the sink, grab that bottle of Windex and the paper towels and spray that stuff down. Do not do this. There are some TVs and displays for which Windex will do the job—CRT televisions, for example, and some glass-paneled screens—and if you’ve been using Windex in the past without incident, don’t worry too much. But also, stop.

Spraying any kind of cleaner onto a screen isn’t a great idea. These panels aren’t weatherproof, so if your sprayed solvent runs into the crack between the panel surface and the display bezel, there will be tragedy. Furthermore, Windex is a glass cleaner: a lot of your screens’ outer layers aren’t glass, or have some kind of delicate coating. Ammonia-based cleaners, for example, can microscopically abrade some plastic surfaces, causing your screen to become slightly foggy over time. And for your cleaning tool, paper towels aren’t terrible, but they’re also somewhat risky—screen coatings can be extremely delicate, and paper towels can sometimes be a little rough. Plus, they’re prone to leaving streaks, no matter what liquid you’re using.

So, what’s the trick? Water. Water and a soft, lint-free (ideally microfiber, which is better at picking up greasy smudges) towel. To clean your panel, dampen your cloth and strain it out as best you can—you don’t want any drippage here—then run it, folded, gently across your screen, repeating until the screen has been thoroughly covered and any sticky residue has been removed. (For larger displays, perform cleaning in sections, so as not to let the water dry or collect and run.) Now do the same with a dry cloth, applying slightly more pressure, to lift away the dirt and moisture. Repeat if there are still grease deposits. That’s it! A few bucks for some soft cloths, a little bit of water, and your screen is as good as new.

And those specialty cleaning kits? They do work, for the most part, but they’re not necessary.

TV and Game Controllers

By the time your TV is in need to a deep cleaning, your remote—or your videogame controller—is probably in even worse shape. The kind of dirt a remote gathers is an order of magnitude more disgusting (and more human) than your panel, so you’re not just cleaning, you’re disinfecting. Interestingly enough, the cleaning method isn’t too far from the one above: A damp cloth, with some water. This time, though, you’ll want to throw a little isopropyl alcohol in the mix—a 40/60 booze and water split works—to help disinfect the buttons, and remove the oily brown buildups you can get between buttons. Again, soft cloth is better than paper towels, this time it tends to be a bit better at reaching between buttons than stiff, thin paper. Use wooden toothpicks for reaching into cracks, but nothing harder.

These are unique in that they’re shared gadgets. And shared gadgets are, almost without fail, fantastic vectors for germs. So what I’m saying is, clean them or die.

Cameras

Body: Cleaning your camera body is like cleaning almost any other gadget—a very slightly damp towel will do the trick. (Though be gentle around openings, since point-and-shoot camera guts lurk awfully close to the surface, and any intruding water can wreak serious havoc.)

Lenses: Lenses are dirt magnets, and if they’re dirty, you simply don’t get good pictures. They’re also delicate and expensive, so you can’t just reach in there with a paper towel and be done with it. Lens cleaning kits are available at every camera store, and include a light cleaning solution and microfiber cloth. These are safe bets, but don’t spend more than $15 bucks on them. Lens pens also work, but they’re a riskier proposition—there’s such a limited cleaning surface on those things, and I always get the sense that after a few uses, the cleaning element has been sort of tainted.

Again, though, stay safe with this one: Buy a microfiber cloth, and simply rub the lens with a circular motion until all visible smudges are gone. Never apply too much pressure—any dust or dirt on the lens can get picked up in your cloth and scratch your lens—and fold/refold your cloth to ensure you’re using a fresh surface at least once during a lens cleaning.

Two small notes on lenses: Don’t forget the clean the rear glass on any DSLR lens. There’s a lot less surface area there, and since it spends most of its time inside the camera or a locking lens cover it probably won’t be as dirty, so this should take much effort. And if you can, treat each of your DSLR lenses to a UV filter. While this is called a filter, it only block light that humans can’t naturally see, meaning that in most photos, the effect will be generally unnoticeable. (More on that here) Point is, you don’t have much to lose by buying one of the dirt-cheap filters, and it will provide a layer of transparent protection from dirt and scratches over your lenses at all times. And since they’re flat and thin, they’re easier to clean than convex lenses.

UPDATE: I’ve gotten a couple of emails from photo pros about this, and I think it bears mentioning: Before rubbing your lenses, it’s good practice to blast them with a little air. Air pumps (like the one mentioned in the following subsection) and canned air will do the job, as will, in a bind, your lungs. The thinking here is that you should remove any potentially abrasive particles from the lens before rubbing it, so as not to drag them around, causing permanent damage. —Thanks, Jody and Ned!

Sensors: Point-and-shoot and bridge camera users don’t have to worry about this, but DSLR users, who provide a chance for dirty to enter their camera bodies every time they change a lens, may need to clean a sensor one day. It’s not as scary as it sounds!

First of all, you’ll never have to actually clean a sensor, since DSLR sensors all have some manner of filter, either IR or UV, built in. But still, the surface is delicate, so you’ll want to be cautious. Most cameras include some kind of sensor-cleaning function in their software; since most sensor taint is comprised of a stray speck of dust or two, a quick, severe vibration will usually do the trick.

If that doesn’t work, and your photos are showing persistent, faded, unmoving spots in every photo, it’s time for phase II: air. For this, I defer to Ken Rockwell:

After 17,000 shots I finally got a speck on my D70. Remember I also change lenses a lot. The Shop Vac wasn’t enough. This time I used an ear syringe (blower bulb) from the drug store which you can get here. I put the D70 on BULB and pounded the bulb with my fist to create a jarring blast of air. That worked.

Rockwell advises to use an ear syringe; I’d say go with a purpose-design lens blower, since they’re still only about $10, and you’ll get better results without running the risk of pulverizing your DSLR’s guts while trying to get muscle enough airflow through a hard rubber earwax remover.

Beyond built-in sensor cleaning and a few blasts of air, there are plenty more methods for cleaning a sensor, but they’re all risky to varying degrees. Unless you’re supremely confident (and careful) it may be best to leave this one to the guys are your local camera shop, assuming you still have one. A ruined sensor, in most cases, is a ruined camera, so tread carefully.

Laptops

Screen grime is the most common cleaning problem with laptops, and with the display cleaning section of this guide, we’ve got that covered. That said, laptops collect filth in a variety of other ways, and they can get real microbial, real fast.

To clean a typical keyboard—that is, a non-chiclet design—you’ve got three steps to try. First, use a damp cloth with the aforementioned 40/60 alcohol/water mixture, turn off the laptop, and run it across the keys. Fold it a few times and use the edge to reach between the keys. You can use this same cloth to clean the rest of your laptop as well, excluding the screen, but including the touchpad. If that doesn’t do the trick, and you can spot some dust or hair in between keys, it’s time for some canned air. You can pick this stuff up at most big box electronics stores or online for $10 or less, and using it is as simple as tilting your laptop sideways, and blowing air in the cracks.

If this doesn’t work, it’s time to start popping off keys. Since you’re disassembling a keyboard that really isn’t meant to be taken apart, there’s a definite inherent risk here, but the results are practically guaranteed to be good. Here’s an extremely thorough guide, if you’re game for it. To give you an idea of what this entails, there’s a point in this tutorial at which all your laptop’s keys are swirling in a cereal bowl full of soapy water. It’s gruesome.

Another problem area for laptops is fans, air intake vents and heatsinks. These all stand in the pathway between outside air and your processor, which needs said air to keep cool. Any blockage can cause your laptop to run hot, your fans to run high, and consequently, your battery to run low. Disassembly instructions will vary from laptop to laptop, and typically will involve removing your entire keyboard. Once you’ve done this, though, removing the dust is a matter of blasting with air, scraping with a clean toothbrush or even just wiping with your finger. It’s not about total cleanliness here, it’s about clearing your computers’ windpipe.

Another helpful trick: Those white, last-gen MacBooks have a disgusting tendency to accumulate a beige (then brown, then black) residue where users’ palm touch the laptop. This discoloration is more of a stain than a buildup, so you can’t fix it with water or alcohol. The fix? Acetone. Seriously, the best way to wipe that crap off is with nail polish remover.

Desktops

We’ve covered how to clean most of the external pieces of a laptop already: any plastic surface gets a moist wipe-down; keyboards get compressed air. That’s it! Your desktop is sparking clean! This feels so good! Now slide of your desktop’s side panel, and weep. If you’ve had your desktop for more than a few months, and particularly if you keep it in a carpeted room, it’s probably an absolute horror show.

The first thing to do is, you guess it, pull out that microfiber cloth. Wipe down every surface that’s finished, which is to say covered in rubber (wires) painted (the inside of the case, and the plastic shell of an internal optical drive, or the decorated exterior of a video card) or inert (the blades of a fan, or the exterior of your heatsink). You can slightly dampen the cloth to help pick up dust from the corners of the case, but your probably don’t need to, and it’s best to keep this a dry operation, beginning to end. Next, whop out that can-o-air, and have at it. Pay special attention to dust buildup areas, like the heatsinks on your processor and video card, and the fan inside your power supply. This will likely cause some dust to resettle elsewhere, so you may need to repeat your wipedown/blow process once more. Again—cleaning the inside of your tower is less about maintaining a spotless appearance than it is making sure dirt, dust and hair buildup won’t negatively affect your computer’s performance, so don’t get too anal about it, cosmetically speaking.

[image via]

Cellphones and Media Players

Cellphones, iPods and other media players are designed to be pocketed, so you can be a little rough on them during the cleaning process. A very slightly damp cloth or paper towel will remove whatever fingerprint or residue your shirt or jeans won’t.

As much as these gadgets are intended to live in pockets, they have an irritatingly high number of places for dust to hide itself. Cellphones have keypads, or, increasingly, sets up buttons at the base of a touchscreen or on the sideof the handset, all of which give dirt a place to accumulate. The grilles over cellphones’ mics and speakers is another refuge for sludge, and they’re totally immune to simple wipedowns. For this, you’ve got to go one step further. Luckily, you’ve probably got all the supplies you need in your house already.

Wooden toothpicks and old toothbrushes help reach into cracks and crevices, like those around buttons or running around the perimeter of some display panels. (Samsung and HTC are particularly guilty of leaving spaces in places like that.)

Sometimes, as in the case of the tiny little mic/speaker grilles on some phones, you don’t want to push dirt in, but rather pull it out. For those situations, lay a strip of scotch tape over the afflicted area, run your finger over it a few times, and pull it off. If that doesn’t work, upgrade to duct tape—though you’ll want to be a bit more gentle with that, since applying too much pressure can leave adhesive on your device, which is a pain to wipe off.

Your Tips and Tricks

If you have more cleaning tips and tools to share, please drop some links in the comments-your feedback is hugely important to our Saturday How To guides.

And if you have any topics you’d like to see covered here, please let me know. Happy housekeeping, folks!

ASUS UL30Vt now available at Amazon originally appeared on Engadget on Wed, 02 Dec 2009 20:16:00 EST. Please see our terms for use of feeds.

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