Brookline Grooming & Pet Supplies provides a fully equipped self-service cleaning zone for hound handlers to scrub four-pawed pals without sullying home bathrooms or kitchen sinks. A self-service dog wash provides guests with all materials needed to de-dirt Rover, from shampoo and water to towels and tail-waxing tools. An arsenal of brushes and combs detangle knotted coats, and high-velocity dryers dry fur more efficiently then forcing your pooch to car surf on the way home. Today's Groupon gets owners 45 minutes of washing time, which is available on Sundays from 11 a.m. to 5 p.m. and Monday through Saturday after grooming hours are over (usually around 3 p.m.). No appointment is necessary, but Brookline Grooming recommends that pet owners call ahead to check availability.