Buy a car.
Nuff said.
Craigslist is your friend.
-Edit-
It appears people already suggested that.
Buy another car or mod your current one.
'Cause cars.
Or you could be smart (whatever the hell that is) and save it. It'll be beneficial later, especially through college and whatnot.
If I had 1000 dollars right now I'd put 800 in the bank and use the remaining 200 for my car, maybe get a game or two, etc.
