Next time some conference at the Metro/Verizon Center is going to force you to stay at one of the bland mammoth conference hotels, consider treating yourself to the Monaco. It is a four story boutique hotel from Kimpton in a converted marble-faced old federal office building (the Tariff and Trade Building, I believe). It has wonderfully high ceilings, the usual somewhat hip and clashing Kimpton decor, and a wide variety of room layouts. I found the staff to be courteous and attentive. I'd suggest avoiding rooms on the first floor (essentially the basement level below the lobby) and ask about last minute deals on suites when you check in. Poste is a great restaurant for breakfast or lunch (with fun outdoor seating in good weather). I'd also suggest finding 45 minutes during your stay to sprint across the street to the National Portrait Gallery to take in whatever new exhibit is in town. It will give you a lift, and a welcome break to the nation's business.