The amount of money needed by a shelter, she says, depends on the number of animals in the shelter. In summer and autumn, this number is always higher, with an increased number of unwanted kittens and puppies. Shelters have to pay for rent, utilities, food, cat litter, veterinary care and medicine. The community can help by donating money and cat litter; adopting shelter animals or fostering cats in their homes until a new home is found. During this time, the cat will receive all the necessary injections, as well as being spayed or neutered.