Quote Originally Posted by betagirl

The worst part is: .......and there's a ton of glass and other crap in the road. I've had 6 flats since I started commuting in June. Needless to say I'm REAL good at changing my rear tire.

have you looked into Kevlar tires and/or slime tubes? We've got bike lanes here that are just a mess and either I'm very lucky or my Kevlar tires and Slimed tubes have kept me safe and it didn't add that much weight to the bike.