The pups are welcome to browse along with customers here, get a bath in the self-service pet wash and bask in the inevitable doting of a very pet-friendly staff. Part of a Bay Area chain, Pet Food Express provides practical supplies from kitty litter and kibble to luxuries like gourmet dog cookies and strollers. This expansive store has room to roam. Customers can rescue a friend during weekend adoptions or come by with pets for low-cost vaccinations each Saturday.