I am not a fan of flea collars either, they may work when the fleas are not so rampant, but I have found advantage to be excellent, no bad side effects and it kills any in the bedding as well.

I am interested in hearing about revolution, its just arrived here, and it doses them for fleas and worms, I was thinking of trying it, but I see there are some bad reactions, maybe I had best stick with what I know.