Our kitten foster program is asking that you house and feed kittens (or moms with kittens) until the kittens weigh two pounds, which is when we are able to spay or neuter them. You provide the food, litter, and love.
Most people keep these felines confined to a small room (a bathroom or extra bedroom is sufficient) as it keeps them from getting lost somewhere in the home. If you have any other pets, we ask that they don't have contact with them.