tonight I found a book on the Japanese art of Chindogu- or the art of inventing unuseless things. They are like little inventions that serve 1 function. for example, a ring that a woman would put around her head to keep ramen noodles from getting their hair.
Mind reading. I pretty much always know exactly what people are thinking and (more fun) usually know exactly what it'll take to get a certain reaction out of them. It's pretty cool and has many applications.