Cleanliness is a Virtue 

They do not just say this for the sake of saying it. Once you identify that there is indeed a flea infestation in your home, all of the areas of your home should be washed thoroughly. Make sure that you wash your pets as well as you can with anti-flea shampoo. This will kill the remaining fleas they have and prevent the spread of more. Clean the carpets, bedding (both yours and the pets) and if there are any items too badly infested with fleas, you would be better off throwing them away.