Dog walking:

Pet sitters also provide dog walking services. Disabled clients, the elderly and extremely busy professionals often hire pet sitters to exercise and care for their pets if they are unable to do so. Pet sitters may also offer other more aggressive methods of exercise for dogs during dog walking appointments. These may include jogging, running, inline skating, bicycling with client dogs.

From here you get the information on Palatine Dog Walkers and Schaumburg Pet Sitters. Pet sitters also provide some house sitting services for clients, tending plants, taking in the newspaper, checking mail and giving homes a "lived-in" look to deter crime.