I wash them before I put fresh food or water in them, which means at least daily. I have six food dishes and two water dishes available, so there are normally some ready to be used. I have two dogs.

Everyday for the food dish and twice daily for the water. He's spoiled and doesn't want his water to sit and get warm.

daily. 4 dogs and 5 cats. daily

Peach insists on clean dishes for every meal..wants fresh water, too. He also comes after me when he uses his litter box.

Every meal. I make their dogfood and use chicken, so I am afraid to leave it in the dishes even a short while

feed my dogs twice a day small amounts and wash there bowls every day

6 dogs 2 cats, wash dishes every day.

Bowls are washed as needed. He eats dry food, and a spoonful of yogurt (vet approved) once a week (keeps the cat breath at bay). He has 1 food bowl and 2 water bowls- 1 by the food, and the other at the other end of the house. Somehow the water bowls need to be washed at least twice a day because there's always food crumbs in them?

we have a neighbor dog that comes everyday for a visit, what will be a good snack or treat I can give her

Daily, I wouldn't want to eat and drink from dirty dishes so she shouldn't have to either. (Sheltie-Jack Russell mix)