Dog walking and pet sitting are perhaps the simplest pet-related business that any person can pursue. All that is required is the ability and desire to walk a dog or watch pets. While you may need licenses in some states and it is a good idea to become insured and bonded, the start up costs and skills associated with becoming a dog walker and pet sitter are relatively minimal.
A dog walker goes to people's homes and walks their dogs. Dog walkers can do this while a person is at work, or on a more short term basis when the owners go on vacation.
A pet sitter, on the other hand, babysits pets when their owners have to go out of town. Pet sitting may involve walking, but other pets besides dogs may also require babysitting, so walking is not always required. A pet sitter can either watch a pet in his own home, or watch a pet in his client's home. The specific requirements associated with each pet sitting job may vary, but the requirements generally include feeding the animal and engaging in some interaction with the animal so it does not get lonely.