If your keyboard or your computer fan has accumulated dust in hard to reach areas a can of compressed air can help you clean it. Simply use the can of compressed air to blow the accumulated dust, hair or other residue away from the computer. Over time all computers accumulate dust, hair and other unwanted particles. Eventually this can make your keys less responsive or affect the flow of air to cool the computer’s internal components – making it run hotter. This tip is a proactive step to avoiding jammed keys and common computer problems caused by overheating.