I've been working since I graduated from undergrad (2001). I'm with you, I can't wait to give my two weeks notice. Walking down the long center hallway of my office toward the elevators on my last day of work is going to be an indescribable feeling.
That being said, here's my situation: I'm a paralegal and have been since December '01. I've known I wanted to go to law since that fall and decided to work to bridge the gap. Paralegalling is an awful job (when your final plan is to attend law school) - 'nuff said.
To answer your question: I'm most likely moving from Boston to California, so I'm going to need some time to, oh, pick up and move 3000 miles. My plan is to stick around the Democratic National Convention (it's in Boston this year), watch the riots from my office (I work 3 blocks from the Fleet Center), and then flee to the West Coast. The DNC is July 26-29, and I'll be out of town by August 2nd. I'm taking 5-6 to get across the country, leaving myself around 2 weeks to get settled in an apartment/house wherever I end up (f'ing UCLA and USC, why won't you let me know either way?!?!).