Liquor store!! Worked at a liquor store for three of my four years at college. My roommates and I were known as the "beer snobs" as all we drank was top of the line imported shit while everyone was drinkin' Natural Light and Busch!!hehehe
You usually get a discount, and if you are in good, after a while you get a "great discount" if you get the drift....
Of course this would be a bad idea if you were "on" at the time, I think it would be too much temptation to "cheat yourself".
Word to the wise though, if you like dealing with people everyday, YOU WON'T after this job...the drunks and other college kids are funny at first, but then it gets old real quick as you will have to pick up there mess and deal with the hobos who manage to be 50 cents short EVERY SINGLE DAY!!

Others: waiter as mentioned....
Valet if you can find a snobby restaurant or club....
Find a gym to work at!! No excuses then not to go.....
I am sure there are other decent jobs put I am pulling a blank