Stroll Barracks Row and enjoy promotional samples from restaurants, discounts at retailers. Contact the sponsor for list of current month's participating merchants. Second Saturday is co-sponsored by Barracks Row Main Street, a nonprofit organization revitalizing 8th Street, SE, between Pennsylvania Avenue and M Street in Washington, DC. The event is organized by Barracks Row Main Street, which is one of nine DC Main Streets, a program managed by reSTORE DC in the Department of Small and Local Business Development. Local DC Main Street programs, like Barracks Row Main Street, work to revitalize their local neighborhood business district in several ways, including assisting small businesses, promoting their neighborhood business district and improving the physical appearance of the commercial district’s streetscape and buildings.