Mike Kelly had a sore back, not to mention torn-down shower curtains, a decimated bathroom, and clogged drains, all courtesy of his 160-pound newfoundland, Gordo. He decided to start a self-service dog-wash business, not simply for his own sake but for other sore, slobber-riddled dog owners as well.

And so In n Out Self Serve Dog Wash was born. There, pet owners find a series of green-walled semiprivate stations that house walkup tubs for a variety of dog sizes, including a couple of extra-large sizes to accommodate massive pups or several small dogs that became stuck together after an ill-fated jelly-sandwich incident. Equipped with washing hoses and shampoos, dog owners can disrupt muddy paws and fur before rinsing and styling their pooch's pompadour with a high-velocity, no-heat blow dryer. Or they can seek out the help of the shop's professional grooming services, which include nail trimming, ear cleaning, and packages with breed-standard trims.