For long as we can remember, coffee has been the antidote to an evening well spent at the bars, even if it meant you had to drive across town to find some all-night rat trap that served industrial strength, Bunn-brewed mud to bring you back to your senses. A few coffee shops are changing the rules of the late-night imbibing, however, mixing their depressants with their stimulants to excellent effect (and safer streets). Case in point: Northside, with its Washington craft beers and thoughtful wine list, can keep your brain sweetly balanced between sober and stone-dead drunk.