Invisibility. I have always wanted to be able to go invisible, and sneak around unnoticed and be able to knock stuff of store shelves and scare the crap out of people. Also I would LOVE to take a car from a car dealership, and drive around and see peoples faces with a car driving with no one in it.
Definitely time travel. I would be a little naughty with it to make some money in stocks or something of course. But I would love to see stuff like Dinosaurs, old cars when they were new, old baseball teams play, etc.
I'm with you Jim on the flying dreams. I never flew often though, but I had a lot of dreams where I would jump on the ground like it was a trampoline and be able to jump super high. Most of the time I recall it was because a bear was after me, so I wanted to get up on top of houses.
2003 Black SLE-Stock
2000 Mercury Mountaineer
1968 Oldsmobile Cutlass Convertible-455 cubic inches of muscle