Well, I think you have to be in a pretty dense urban area to get bike messengers. I've never seen any and I live in the suburbs, but I worked in McLean for four years. McLean is a big commercial area, but it's sprawling... So no bike messengers. I'm sure there are some in downtown DC, maybe Alexandria or Arlington...
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Treasurer, HHCMF Club
Now living in the land of the cheesesteak.
But working at a job where I can't surf BikeForums all day any more...