if I have read correctly ... kitty and doggy are in 2 different homes. But just a general warning for everyone don't make the mistake of using dog flea control on a kitty. This is toxic!! It can kill the kitty! And does quite often. Also never put ANY flea control on little kittens. again toxic. And if you have mutiple cats it's a good idea to seperate them when you put flea control on. Because they lick and grrom each other. I have worked at a vet clinic and I have seen the first 2 situations happen and it is sad. I have never seen a cat come in from licking it off another cat. That is just my own cautioness!
As for the CARPETS, my mom told me a hint and I have used it (along with monthly flea control) and have only seen 2 fleas in my house in 3 years !! And one was tonight.
But, it is called Borax. You can get it at Walmart. it is a salt based soap. It is in with the Tide and stuff but it isn't really soap. It is basically salt in a box. It was originally made in the 1800's and I think it was for when they actually washed each item of clothes by hand!
ANYWAY!!!! You sprinkle it in your carpet. Wait an hour or so and vacuume it up. Of course you will never get all of it up. And I have never felt it on my feet. But, fleas cannot live in the salt. i don't know if they die or just get the heck out of your house. But they go quick! I also have beds for my dogs and I sprinkle just a little inside the bed. I don't know if it works but I HATE fleas and I feel better doing it.
I bet if you google the words Borax and fleas you will find just how to use it.