I've used Advantage II for my two cats when they were little kittens and had a few fleas from their foster homes. Worked well enough, but I used Revolution for the following month since it also provided them protection against earmites and as a worm preventative.
However, since my two are indoor only and I've no other pets (and neither do my neighbors), I've decided no more spot treatments are needed for now, knock on wood. FYI, I also don't wear shoes indoors in my apartment, though fleas can also be hitch a ride on your clothing if you walk through dog parks or through tall grass where fleas/ticks live.
Last edited by TabbCatt; 10-07-2015 at 12:54 AM.