I have two Labs who I love to walk or sometimes run with. The older is 10 and is the perfect walking companion. The younger is 9 and is more adventuresome, investigating everything. I have often taken 3 dogs walking when we have had visiting dogs. I can handle the larger dogs and smaller ones. If you want your dog to be walked briskly I am happy to do that or if it is outdoor sniff time, I can do that also. I prefer ad-hoc work to regular "every day at noon" walks so I'm not as tied down. I have had cats in the past and love them also but in this house with two labs we don't have cats anymore because the dogs both want to play with them and they quickly are overwhelmed. I love walking so I see this as a great way to help others and keep fit.