Subject: B&B or moderately priced hotel in DC?
May I recommend Kalorama Guest Houses - 202-667-6369; the main B&B is on Mintwood Place in Adams Morgan; others are in the Woodley Park area. Friends of mine stayed there and found it very welcoming. One possible drawback - no phones in the room.

Carlyle Suites at Dupont Circle also has inexpensive rates - it's a nice Art Deco hotel.

Other sources: The Sunday travel section in the New York Times often has a page on Washington DC with good weekend specials - I once hosted my parents at the St. James at Washington Circle in a suite for about $100; they loved it. I've also had good luck using