Bicycling in Arlington

I have great hopes for the bike -- and this morning I'm going to go to the gym on it.  I'm kind of scared of traffic, but Arlington seems pretty bike friendly, and I see people on the sidewalks on bikes, so I'm sure I'll be safer here than many places.  The location of our new house should make biking very possible for all kinds of errands, and I'll get a photo that shows you the cool bags I got for the back that can hold one bag of groceries each!