Well, I got 2 sorts of powers that I think would be pretty cool to have.
The first one is time-control. I wouldn't need to travel a lot in time, just a few minutes or even HOURS. If I had that power, I could do anything. Doing a test and don't know the answer? Steal somebody's paper, run outside your school, remember the answer and go back in time. You now got your answer! You have to give a paper to your teacher in 5 minutes, but it should take you 2 hours to finish and you didn't do ANYTHING? Stop time, do your paper and hand in your project! Wanna see a girl changing hersel- you know what, no, I wouldn't do that
Next power would be teleportation, like in the movie Jumpman. I just need 1 photo of a place and BAM, instant teleportation. I wouldn't need to know how to drive or anything! If I wanna go somewhere ("Hey, I wonder if I'm taller then an Italian...), boom, I just teleport there by watching a picture!
