Museum day - for free!
The Smithsonian Magazine is sponsoring Museum Day this Saturday, September 30. Hundreds of museums around the U.S. are giving free admission with a Museum Day pass. Print out your pass here, and find a participating museum near you here.
I am doubtlessly exposing myself as a big dork, but I love museums, and I think a museum visit is one of the best date ideas ever. I've been on several museum dates, and I've absolutely loved every one!