There may be some high-dollar underground poker rooms in the city, but Maxwell's Carwash ain't one of them. Located on the far north side of Houston, in a bright blue, wood-paneled building, the car wash isn't a large-scale operation, but there's an open lot and cleaning supplies out front. And there are some serious bones being thrown here. The domino games get pretty intense, so don't try to sit in if you don't know your game. A card game pops up from time to time, but the old-timers pretty much stick to dominos. Cold beer served from a cooler is a bonus.