Writers can lend their talents to newsletters and magazines, as well as proof read other text. Computer experts can help with programming and web pages. Volunteer to counsel and screen potential adopters.
Drivers can provide transportation for long-distance adoptions.
Mail informative fliers or newsletters to local shelters and rescue groups. Buy food or supplies for a dog or cat with a portion of your babysitting earnings. Mow a few extra lawns and donate that money to the shelter. Walk the elderly neighbor's dog or change the cat's litter box.