The 10th it is.

How about something in Clarendon? Very Metro accessible and not that far from DC. There are lots of options there. We did Liberty Tavern in November. If memory serves, the food was good but service not so much. I've been to Sette Bello a couple of times and would recommend it - it's pretty large, so seating wasn't a problem, and it's right across the street from a free Arlington County parking garage. Happy hour there is from 5:00pm to 7:00pm on Sunday.

Other possibilities include Boulevard Woodgrill (good but often very crowded), Harry's Tap Room (nice beverage selection, if I remember correctly), La Tasca, Tallula, and Tandoori Nights.

Alternatively, Crystal City, also very Metro accessible has some options: Ted's Montana Grill and Jaleo come to mind.