I have 2 small dogs. They have their own penned off spot in the kitchen on the same floor as the daycare. Sometimes they come out with the kids when I have a low number and I'm there to watch them.
I don't advertise that I have dogs. I let clients know when they come to the house. I think if I make it a big deal then someones going to think it's a big deal. I've never lost a client over the animals.