It's summer time, which means outdoor kegs. So where can you get kegs around here? Short answer: nowhere. There are literally no liquor stores in Columbia Heights and the surrounding area that have kegs - I called them all. However, D'Vines on 14th does have a few on hand, and can order them for you with enough notice - a few weeks. The last time I was there, they had a couple, but the manager said they don't have room to carry many, so they don't.
So where can you get kegs? The closest places I've found are Metro Wine and Spirits on Columbia Road near Ontario, which is reasonable - Yuengling with bucket and tap is about $75-80. A-B Liquors on Columbia just west of 18th has similar deals, as does Barrel House at 14th and P in Logan Circle. You could go farther afield, but those are the best I've found around.
Any other good spots I'm missing?
D'Vines: (202) 234-0044, 3103 14th St NW
Metro Wine & Spirit: (202) 265-5066, 1726 Columbia Rd NW
A B Liquor Co: (202) 234-5500, 1803 Columbia Rd NW
Barrel House: (202) 332-5999 , 1341 14th St NW
Amazing photo by Wikipedia user Kane5187. It's Dartmouth's mascot.