I'm a relatively new homeowner, and I'm completely clueless about home repair, home maintenance, etc. This will be my third winter in this house. The house is reasonably well insulated--I had it inspected before buying and there's good insulation in the attic. I was wondering though, about insulating the ceiling of the basement. I spend a lot of time sitting on my floor, and now that the weather's finally turned colder, I'm noticing how cool the living room floor is . I was wondering about putting some insulation in the ceiling so that the first floor floor stays warmer (and to perhaps reduce the heating gas bill--I pay about $1800 a year). Last year I put down rugs, but the dog ended peeing on them repeatedly, so I was thinking of trying to make the floor itself warmer. What kind of insulating material would I use and is this something that people do or is this an off-the-wall idea?