My usual commute is from Clarkston through Medlock to the Emory/CDC area. Kinda hilly, but very light traffic for the most part. I'd probably have wimped out today if I'd gotten to ride yesterday, but I didn't so I was itching to get on the bike this morning. Bike commute is usually about 15 min faster than a car commute anyway since the area around Emory is usually solid gridlock during rush hour. I always find zipping around all the stopped cars to be very satisfying.