Ok I have to fly to DC next week for work. My current plans have me there from 14th July leaving on the 27th of July This basically leaves me with the following free days - Sunday 15th - the following weekend and the evenings after work. What I am trying to decide is whether I should take a flight out on the Saturday or Sunday instead so that I can have an extra weekend there. Has anyone been to DC and can you tell me whether 3 full days plus the evenings to look around and see the main stuff. Or whether there I should extend by a day. If I extend I have to pay the extra day or two for the hotel. Any advice?