There are a lot of different options out there for flea treatments; some work and some don't. I have tried store brands without much luck and have bought Advantage Plus with wonderful results, but the price is just horrible. Luckily I have only had to treat my cats once about a year ago. They are completely indoors so the only fleas in the house would be ones we tracked in ourselves. My mother in law uses Diatomaceous earth on her cat but it is more a preventative measure than a treatment as it takes a while to kill the fleas and that gives them time to lay their eggs. I would recommend it as a preventative though. What products have you tried?