We did it! We didn't know it before hand but I think we came the best week of the year. The temperature was good and there were NO crowds or traffic...at all. Our cab driver said after Labor Day it would be busy again. Bringing just our oldest was great. The time was personal and we were able to do and see so much more. Plus we could easily fit in a cab at any corner. Cabs aren't very expensive for the Capital area. Almost everything is FREE, I had no idea. The ONLY thing we paid for was the night time Memorial tour, Mt Vernon, and Spy Museum. You also have to buy tickets ahead of time for the adult portion of the Holocaust Museum.We drove to Mt Vernon and the Zoo, super easy to get there and park. Smartest thing we did was packed our running shoes and making memories with our high schooler, priceless!