Originally Posted by
mc9000
Here's my commuter, a Marin Muirwoods 29er.
I originally got a Topeak bag but it wasn't big enough for my laptop. So I brought it back and went the milk crate route, which I'm really liking.

Mine used to look like that.
Since then, it's
morphed into this:
though right now I've got skinnier tires on it for the spring. In a few weeks, I'll be putting knobby tires on it and taking it out of commuting rotation for the summer.
I love how many different things you can do with this bike.