Drinking is the underlying concept behind many man caves, so why not be upfront about it with a full-on bar theme? This lair can take many forms. You may want to go upscale -- an Irish pub theme with polished wood and Guinness on tap, or maybe a wine cellar and a humidor. Or you may be the type to prefer over-the-top cheesy décor -- think Daytona Beach spring break, complete with neon signs, Budweiser and Swedish Bikini Team posters. Of course, there are any number of ways to attain the middle ground with the bar theme. All you have to do is concentrate on drinking and watching TV, and there's nothing complicated about that. Pool, foosball and beer-pong tables never hurt, either.
Must-have: A simple kegerator won't suffice here -- you need a full bar with at least two beers on tap.