Heading into happy hour hungry after work? The downtown Chef Geoff’s, three blocks from the White House, is the place to go. The $5 burgers are served with a heaping helping of shoestring fries. And the beer? Oh, Lord, the beer. The dark-wood-paneled bar tosses out this heavenly thing called a Supermug: 34 ounces of beer for $7.95 from an excellent array of beers on tap. If you’re less thirsty, long-necked beers (I usually go for the Shiner) are $2.95.