I have two old school bodegas/corner stores/delis/spas/variety stores within a block of my house in NW DC. Thanks to the neighbourhood, they both carry a fairly good stock of foodstuffs and booze at slightly less than extortionate prices. While I wouldn't do my main booze shopping at either of them, I can get a decent sixer (Dogfish, Sierra, Heavy Seas, etc...), a moderately tasty $10-$15 bottle of chuck, or mid-grade booze (They carry up to Buffalo Trace in boubon, Titos in vodka, and Hendrich's in gin.).

For better prices, I drive into VA to one of the booze warehouses and ABCs.