We have cats but they do not go outside evever. I think my family brough them in by goin’ in and out. I’ve bathed all the cats, cleaned all the sheets, vacuumed the carpet multiple times and used advantage on all the animals. Also, we tried using the advantage spray to kill the fleas on the couch, carpet, rugs etc.. but we still have fleas! What is the best way to go about ridding my home from these little pest? Preferably without calling an exterminator.