I started dog sitting pretty young! I've had experience with dogs small as Shih tzus, and as big as a Bernese mountain dog. I have taken care of two dogs that required insulin shots, and another elderly dog that required daily meds. I frequently walk dogged as well! I also have experience with puppies (as young as 6 weeks), and geriatric dogs (14 year old golden). There isn't a dog out there I don't like! :)