That's interesting Matak. Thing is, these don't seem to care about weather...or at least they surely aren't a seasonal thing. They've been here since...gosh...well a long time, I'm beginning to think.
Now, one would normally assume that in winter here, it would be cool and dry inside. But running something like 12 fish tanks, especially one like a warm 125g, it is as humid and warm as can be in here (which I happen to like.) It's 80F+ in here (and the heat's not even on!) with pretty heavy, wet air too. So I'm guessing the fleas are having themselves a grand ol' time.
I have increased vacuuming up to 4 times a day or so...keeping the vacuum out on the porch (Did I mention chris left it outside in the rain all day?
). He isn't sold on the exterminator and wants to try using the carpet spray at the vets. It's 20 bucks per bottle (!) though, and she said it only covers something like one room. Aye aye aye. I'm going to call the exterminator again and see which chemical they use and how much of it and compare it to the vet's stuff.
Thank you for your help so far everyone.