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They say that cleanliness is next to Godliness, but holy hell, even if you've never set foot in a church, do yourself a huge favor and strut into your local electronics store and pick up a can of compressed air.

While you're at it, kick that smoking habit. Believe it or not, we've seen dirtier PCs than this, and they usually belong to smokers. If Marlboro makes your PC look this bad, can you imagine what cigarettes are doing to your lungs?

But we digress. Whether you choose to smoke or have the same irrational fear of vaccuum cleaners as our feline companions do, get in the habit of dusting out your PC every once in awhile. A series of short bursts on your PC's vents once a week will do wonders, just be extra careful to hold the can upright or you'll end up spraying liquid all over your system. And it's a good idea to pop open your case once a month and clean out the inside (shut down and unplug first).