I was just today thinking of starting a thread like this! I'm in a similar situation. My solutions so far:
Start (re)visiting the outlet stores for clothes shopping.
Set your thermostat lower/higher than you'd usually. Close vents in unused rooms.
Run your dishwasher and washer/dryer at night.
Rethink your cable package and your cell phone plan.
Go back to the old college habit of pregaming before you hit the bar. Nurse one or two drinks there.
Apply for scholarships
Cancel your gym membership and go the gym at your school.
Buy cheaper gifts for everyone than you normally would. They should understand, it's only for 2 years. Something homemade is even better. Maybe bake them a cake!
No highlights/coloring, cheap haircuts. Depends on what kind of lifestyle you live but I should also mention to skip the waxing, mani/pedi, and fake tans.
Sell your old unused gold while it's still going for good prices. You can get a couple hundred out of that.
If your parents are around:
Buy in bulk, store excess at your parents' house.
Cook in bulk and rotate nights with your parents. Cook more in general.