I have a hybrid Schwinn that I bought new for $350 about 5 years ago. It's pretty heavy & I basically feel like a grandma riding it, but my commute is only 2 miles, so I can't really justify a new bike, as much as I'd like one. What I can justify is new tires, since I haven't replaced them since I bought it (miracle of miracles, I've never even so much as replaced the tubes).
So I need your help, because I don't know a damn thing about buying bike tires. I'm pretty sure I can figured out how to actually replace them with the help of our local bike coop, but they don't sell new parts there, only used ones.
I ride the bike in rain semi-often & Chicago has atrocious potholes, so those are important factors. I don't ride in the snow much though. The tire sidewall is marked 700x40C and the rim has a sticker that says 700c x 28c/35c ETRTO 622x20
Help! :)