I've got seven bikes on the front (enclosed) porch--four of mine, my wife's mixte commuter, and my two kids' bikes, one in the dining room (all-chrome Raleigh Sports), one in the backyard under a tarp (Bridgestone CB-1 winter beater/grocery getter), and everything else in the basement, mostly hanging from hooks from ceiling joists with a few others crammed in a back room where I also keep most of my wheels. I don't have a garage (which is probably a good thing to keep the herd down).

Neal