Less than 2 weeks until me and my mom head to DC... we're seeing the Friday and Saturday games against the Blue Jays. On pace to see Stammen on Friday (maybe Olsen if he comes back), and Zimnn on Saturday (excited for this one). Any pieces of advice on other stuff to do in DC?
Wanted to get my 2 cents in before the other bozos do

Lunch at the Native American Museum
My favorite is the Hirshhorn, but I'm guessing you'd appreciate Air and Space more than modern art. The one by Dulles has a space shuttle, concord, WWII planes. It's incredible.
WWII memorial is timely and amazing.
Dinner in Adams Morgan if you like world cuisine (there's an Eritrean place just outside at Florida Ave that is excellent)
Walking around the Mall in the evening - it's so beautiful, but stay in well lit areas.
If you have a car: Mt Vernon, Manassas Battlefield, etc.
The Post has a going out guide every weekend online that lists all the special events. There's often really fun street festivals.
Maybe we should make a sticky thread about what to do in DC, maybe in the Red Loft?