Anybody metroing can get off at Foggy Bottom (Blue/Orange) (don't forget to get a transfer before you board Metro) and EITHER take any of the 30 busses (be careful though, the 38B goes to Rosslyn and you'll have to get off at Wisconsin and walk up a couple of blocks) and get off at N St, the first stop after you turn onto Wisconsin and walk up to 1335 Wisconsin (corner of Dumbarton between N and O) OR you can take the new DC Circulator which will drop you on Wisconsin and K (last stop) and you can walk up Wisconsin a few blocks to 5 guys. It also a fairly short pleasant walk from 24th and Penn to 5 guys, about 10-15 minutes.