Speaking of people raiding your snacks, snooping through your gear, or attempting to plagiarize your papers, check out this handy motion detector Gift Alarm. Not for gifts only! The small alarm, when set, will alert you with a loud siren and flashing light should anyone come too near to something of yours they shouldn’t. While it would be tempting to use this on top of your car when you’re running late for class, avoid such temptation, or you’ll be late by at least the time it takes to make bail. Mcphee.com.