I just discovered (just my luck) that my cats have fleas. I ran out and bought Advantage and all three cats have been medicated. I kept them in the basement for the first 24 hours, but when I let em out I noticed three fleas - one on Mason, one in Alexis' hair, and one on my arm. At this point I FREAKED. The cats were confined once again to the basement and I have vacuumed my carpets three times with my brand new Bissell vacuum... I also put flea powder on the carpet, let it soak, and vacuumed that out. All linens have been cleaned and my furniture has been vacuumed thoroughly as well. We still have to clean the basement, but other than that is there anything I'm missing, short of flea bombing the house? I also bought replacement sand for the sandbox in the backyard just in case the fleas are being brought in by the kids. Please note my cats don't go outside nor are they in contact with other animals. If you have any suggestions, do share. Thanks.