I don't make a big deal out of my birthday. It usually winds up being just another day for me. Sure, I get the chance to take a break from my savings plan, pull out some cash, and go get myself something nice for a change, but I wish my birthday was a litte more eventful sometimes. Still, I've got my friends at college, and we can always go hang out and have fun any time we want to, so what's another day out of the year?
EDIT: Other people's birthdays are cool, though. I like trying to look for cool stuff to get them, and the free food (that is, food I don't have to pay for) is a plus.