When I lived in California, I had a small pet sitting business for over 10 years. I had close to 12 clients. At that time I also did pet sitting for cats and birds and even an iguana [I adored that iguana and was very sad when his owner returned after a month of being away]. So if you have cats, as well as dogs, I would be able to care for both of them. I have a deep love for animals - they are the children I never had. I love spending time sitting on the couch, watching TV with them, if that is also their preference - to have someone spend time with them, and not just go there to feed and walk them.