D.C. Reynolds boasts a large patio filled with picnic tables that’s perfect for summer happy hours. Every weeknight, the Petworth bar offers two-for-one drink specials. (Photo by Craig L. Moran for The Washington Post)

Beer for a buck : Hit happy hour with the change from your sofa cushions.

Two-for-one drink specials : Deals that feel twice as good.

You have to eat, too : From pizza to Korean dumplings, where to fill up at happy hour.