If you've got a buddy or a date, this might be a good spot for you. The Heights has a new deal on every Tuesdays that I spotted in their window the other day: 2 burgers, a pitcher of beer and 6 oysters for $40.
Sounds like a good way to spend a weekday evening with a buddy. They have pretty solid burgers too.
The Heights is at 3115 14th St NW. Here's their website.