Alexandria - Pet-Friendly Sightseeing

Old Town, Alexandria, VA is very pet-friendly. Most of the retail stores allow pets (I'm not quite sure about the restaurants though) and the stores will have water dishes inside for the doggies. Of course, not all of the store allow pets - some of the antique stores don't, for example. If they don't allow pets, most of the shops have signs posted, but I was very surprised on how many stores and shops allowed dogs.