This is an ideal job for anyone that loves animals. You can set up an ad for free in most online markets, or you can place an ad in your local paper and sell your personal brand of TLC. You can walk dogs, spend time with animals while their owners are at work, pet-sit while people are on vacation, or even bathe pets for owners who do not want to or can't themselves. People, as a whole, dote on their pets and are willing to pay more money to those who are great with pets, so if you have this special attribute, you can easily earn enough to cover most minor expenses. Plus, if you start off small and get a following of clients, you can turn that need for fast money into a lucrative side or full-time job.