If I could choose the powers I had bestowed upon me, I'd go for the ability to see through people's clothes, but only to the extent where I'd be able to see what they had in their pockets. I wouldn't want to look any further into the nether regions of the general populace.
Anyone remember that (American, I think) TV sitcom from the 80s where a small girl had the power to freeze time? No idea what it was called, but I know the opening credits had someone opening a door into a ladder holding a can of paint, which she duly froze and averted an unholy messy carpet.