I'm not sure how I feel about this thing. Flex Petz is a company that allows people to sign up as members, and then reserve a dog for a day. Part of me feels like this is a typical to-busy-for-commitment society we live in. On the other hand, there are genuine pet lovers who may not be able to keep a pet for one reason or another.
Of course there are always dogs at shelters who need walking and attention from volunteers.
Here is the company website. It's an interesting concept, and it looks like the animals are well taken care of.