Where to eat in DC?

I've gone through all the Yelp reviews that I can handle, so I'm reaching out to my fellow Serious Eaters!

My g/f and I are heading to DC for a few days to do all of the "tourist" stuff, but we want to eat good food. I have a rez @ Obelisk for dinner one night, but ALL other meals are up in the air.

HELP!