Originally Posted by lostarchitect

I used to, but I switched to a pannier and now a saddlebag. My back doesn't get sweaty and I can carry just as much stuff. I would not switch back unless I really had to.

You might try a compromise: I made a pannier out of a messenger bag, then I could carry it over my shoulder off the bike. I'm sure someone ready-makes things like this if you don't want to make your own.