We're planning a trip to DC between July 15th-22nd (dates are flexible). It will be my husband, myself and our 3 kids- ages 15, 10 and 11months at the time. How many days do you all recommend? I was thinking 4-5 nights. We don't have our activities planned yet but just want to do the regular sight seeing, I suppose. I'm looking to stay here http://www.dcdupontcirclerentals.com because I read on another thread that Dupont Circle is a good area to stay. I guess I just want reassurance that this would be a good place. I would like to be somewhere that is easy to go back to so the baby can rest. Also, I am very overwhelmed when looking up info on the Metro. Do we each need a pass?