You do know Frontline's cheaper in large quantities? It takes awhile to expire, too. One year I bought large, but it lasted for the next spring and I was glad to have it when the next spring was unusually hot and muggy.

We have a great early-warning system, BTW, which is that the indoor cats love to sleep on the laundry machines. I can always spot the flea leavings on the white enamel before the problem gets out of hand.

~S~