Another commuting evangelist here...

One of my employees had her car stolen and she called to say she didn't think she was going to be able to get to work for awhile. I said "Do you have a bike?" "But it's cold out." "It's not stopping me." She didn't miss work.

Last night a friend said he'd been thinking of commuting by bike, but when the gas prices went down he didn't have a good reason anymore(!!) I said "what about the fact that you're contributing to global warming? what about your health?" He said "okay, okay" and promised to get on his bike.

I think when we set the example it's hard for others to keep up their excuses.