I did it!!
Last week I took my bike (an old Huffy Savannah) for a tune-up and some new tires. I don't think Scott believed that I would... but today I rode my bike to work. The route I took is only about 5 miles and fairly flat - with just one (kinda steep) hill right before the office. That should be a hoot to whizz down tonight!
I already feel more responsible! (And kinda sore...)