What a great idea.I've often thought about doing a pet sitting business on the side but then I probably wouldn't be able to spend as much time with my cats. When I've been pet sitting for friends, I don't charge anything. They just take me out to dinner later on so I really don't know what the going rate would be. Maybe you could call a few pet sitting places and pretend that you want them to take care of your cats so you can find out what they charge etc. Good luck.
You could advertise for free on Craig's list.
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