We had a flea problem when we moved into our new house. I happened to have a can of [link|http://www.vet-kem.com/products_dogs_HT_siphotrol.htm|Siphotrol] from a previous, ahhh, encounter. I sprayed all the carpeting and furniture, and anywhere else I thought might harbour them before I went to work. When I came home, no more fleas. I also started treating Bella (my dog) with [link|http://www.nofleas.com/About-Advantage.asp|Advantage] to keep them under control.

Hope that helps...