I saw in the post below you were looking for fireworks.
The Marine Corp band puts on a free concert every year at Wolf Trap this weekend. The show concludes with a great fireworks display.
Might be a little late for your DD....
If you do go, I would say get there early, and take a picinic. We did that the last time we went and got a good place on the lawn. People are usually waiting at the gates when they open so they can get the best spot...
Re: MrsNJSwimmer--fireworks
thanks - someone showed me yesterday, but I think it's probably too late for him.
I think most fireworks will be too late for DS since "dark" is past his bedtime! LOL Not sure what DH is thinking.