Aug 18, 2010 8:58 AM
While leaving a rubber band or marking a star on your dorm door's white board is way classier, you'll definitely become a legend on your floor if you use one of the signs from If This Sign's a' Hangin' . . .: 36 Ways to Say Do Not Disturb ($11). And if you're not the get-freaky-with-the-cute-guy-down-the-hall type, the authors include ones for other occasions than getting sexiled, i.e. you've got the stomach flu, or a huge paper due the next day.