For years, when I travel to NJ to visit relatives, I have been able to find tons of MS work of all kinds offered there. Just start by signing up with the 15 most discussed MS companies, from the list below. Then add 5-10 more on any day when you have not found as many shops as you want for that day. Soon you will have more to choose from that you can possible do in a week.
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.