When I lived with my grandmother (I lived there while I was going to college-- it was so nice to have family so close!) she bought me several things to help me organize my room, like shoe and sweater hangers, and these cool bands for the back of the door, meant to hold purses and belts. But of course, I already had a perfect way to organize my purses, so I used them instead for my scarves!
Isn't that nice? I think the back of doors is a wasted space and I love it when I can use it somehow. I'm in the market for a head-to-toe mirror to add to the back of the other closet door next :)