I started dog sitting in college and had so many clients that I didn't have to pay rent in the summers because I was never home:) The last 3 years I worked as a personal assistant and half of my job included walking their dogs (3 rescue boxers), taking them to the groomers, vet appointments, treatments, giving them their medications and making their dog food from scratch. And I currently live with a dog and stay with her and walk her while my roommates go out of town.