It also helps if you cut up a flea collar and put it in the vacuum cleaner bag before you vacuum. Just don't put the collar on the kitties.
Glad to hear you are getting it under control. Fleas are no fun. Also when you vacuum when you are done be sure to empty the bag or canister outside. That way they won't climb back out. Not sure if they can but I don't take chances myself.
I've heard that the cyclonic action of the vacuum kills the fleas but I'm with you. Not only would I empty the bag in the trash outside, I'd spray the whole trash can with deadly poisons! :lol3: