We have been having a fit with fleas this summer! We spray our yard every 3-4 weeks with liquid sevrin and the 3 dogs and 1 cat are on monthly Frontline. I wash their beds, bathe them,spray our few area rugs all on the same day, and I still will see a couple of fleas. I hope they die a painful Frontline/ flea spray death from biting one of my babies! /forums/images/%%GRAEMLIN_URL%%/mad.gif