Over the holidays Im planning on making a room into a home gym: Large Rug for Padding Treadmill Free Weights/Bench Television Stereo Mirrors I prefer working out at home though. No shirt, pump up music, television, etc.
Do a media room if you don't have one...If its a one story, it will be easy to wire it yourself...Buy some huge TV for games/movies, put a bar in there and then add a disco ball for full effect...
Call it the milliondollarroom and sub-divide the wall and ceiling and floor space to one million equal squares which you can then sell for $1 each to put up some ad. Then, open up shop. Have people come walk through your room because it will be so cool. Charge $5 a head. Take pictures and put them online. You'll be rich. Filthy rich!
Turn it into a total game room and put as much sports memorabilia framed in it and just have it to hang out...definently what i am going to do...i have enough stuff saved up over the years..now just have to find the extra room lol.
Put a ping pong table, dart board, and a mini fridge full of beer in there. Invite some friends over to throw some projectiles, hit some balls, and down some brew.
I know what I would do if I had an extra room. A music room: keyboard, drum set, guitar, vibraphone or whatever else I'm working on. A stereo for any recordings I'm playing or singing along with. Of course, my extra room is full of that stuff already, and in the future I'm not likely to have extra rooms and will probably just park most of the stuff in the music department of whatever college I'm affiliated with at that point. If not music, I'd have an exercise room or maybe DDR room. There's a lot you could do with that. I wonder about the people on here, seeing as most of you thought of "sex dungeon" first...