Tulip - I think it's great that you explored DC by bike. I wish I could do it but I always feel like I have a target on my back during my commute in the city. I'm usually a nervous wreck because so many motorists are speeding, not paying attention, in a hurry, etc. and they could care less if they run me off the road. I'm very confident of my ability to ride in traffic (not so much when I first started commuting) and I'm always very aware of my surroundings (I try to predict what could happen). But...I always breathe a sigh of relief when I hit the Cap Crescent Trail. Just last week when I was leaving my building and a co-worker yelled, "Be safe!", I crossed the street when I got the green light and a car came within inches of hitting me. I came to the conclusion a few weeks ago that a good commute for me is one where I don't have an altercation or near altercation with a motorist. Maybe some day, I'll get the courage to explore the city!