I had this crazy idea today that maybe I should cycle to school once or twice a week. It's about 19 miles each way (in Miami) and my only concern is the fact that drivers here are nuts. When I ride for fitness/training I seek quiet roads but taking detours through minor roads for this commute would add too much time to it. The road I'd take is by no means a major road but it is a fairly busy one.

Anyhow, I'd hate to lug a backpack full of heavy books around. What sort of bag that attaches to the bike would you recommend? I'd ride a hybrid bike that can take panniers, fenders, etc.

More importantly, am I just of my mind? I suppose most of you will say I am not since you all commute on bikes but hey, who knows LOL.