Washington DC is one of the most expensive places to stay in America outside of New York. Most DC hotels cater to business travellers and political lobbyists, and during the week are quite expensive. At weekends, however, many cut their rates by up to fifty percent. Alternatively, if you really want to save money, numerous chain hotels on the suburban outskirts have affordable rates and metro access. For a list of vacancies, call WDCAHotels (wdcahotels.com), which provides a hotel reservation and travel-planning service. Similarly, a number of B&B agencies offer comfortable doubles starting from $60 in the low season: try Capitol Reservations (Wcapitolreservations.com) or Bed & Breakfast Accommodations, Ltd (bedandbreakfastdc.com). Wherever you go, make sure the facility has air conditioning; DC can be unbearably stifling in summer.