Got a tough time keeping your head off your desk in the middle of class or meetings? Weblog Dumb Little Man suggests several tips for staying awake during the drowsiest of times. The tips are fairly common sense, from taking naps and frequent bathroom breaks to ingesting lots of caffeine (those last two should work together nicely). But there's likely not much there you haven't thought of before, so if you've got your own killer methods for staying awake when your lids start to get heavy, let's hear them in the comments. Photo by briandewitt.