carpet cleaners

Our house is mostly carpeted, and we try to give the carpet a good cleaning at least once a year. When I was a kid, my mom used dry carpet cleaners. A few years ago, though, she switched to steam cleaners. We don't own either one - we rent it from a grocery store, or a carpet store, or an equipment rental store. Both types are good cleaners, but we decided we prefer the steam cleaner - it feels just a teensy bit better. Of course, this year, we haven't cleaned the carpet but are trying to replace the carpet in most of the rooms.