A generic Adidas backpack. I just ordered a messenger bag from
Timbuk2.
I got it so I could ride my bicycle in on occasion to work (23 miles to get there, one way. Crazy huh?).
It cost me around $45. Should be here next week. Even when it comes in, I may still not ride my bicycle. It is friggin cold out and I don't have all my cycling gear built up yet, especially for a 1.5 hour commute.