There’s little you can’t find at this shop that caters to every kind of pooch: holistic dog foods and free-range meat treats for outdoorsy labs; designer chew toys, blinged-out collars and scented shampoos for prissy Chihuahuas; freshly baked cookies for chunky beagles; and all the latest gadgets, like ice-pack collars, cooling mats, and dog carrier backpacks.