It is important to routinely groom your car—otherwise, it will grow an unsightly beard that will tickle your cheeks when you kiss it goodnight. Shave off soot and give your ride a much-needed lathering with today's Groupon: for $75, you get the Paradise full-detail package at The Paradise Carwash (a $150 value). Trucks, large SUVs, and heavily soiled vehicles are subject to an additional $10 fee.

The Paradise Carwash keeps autos spic and span with a suite of car-pampering services performed with exacting care. In the one- to two-hour Paradise full-detail package, a thorough hand wash gently lifts away accumulated filth, cleansing away dirt, bugs, and the limericks of ride-hitching skateboarders. A clay-bar treatment removes tiny impurities that are immune to regular cleans, and a spot-free hand dry keeps evaporating water from leaving behind unsightly exterior dapples. Car carapaces glisten under the influence of buffer, polish, and wax, and radial locomotors stay sharp with a tire and rim clean. Engine cleaning and dressing leaves cars looking their best under the hood, eliminating the risk of grime-related embarrassment when cable jumping a friend's car battery or newly constructed Frankenstein monster.

The Paradise Carwash's car cleansers also turn their attention to interiors, vacuuming carpets to suck away amassed dirt and crumbs. A dry shampoo cleans fabrics, and leather conditioning keeps hide-hewn seats supple and soft. Customers who so choose can have an odor eliminator or fragrance added, cancelling out unpleasant smells left from cigarettes, damp fabric, or backseat cheese-fermentation labs. After cleaning, each customer receives a 24-hour rain check, ensuring a free re-cleaning in the event that precipitation soils newly cleansed cars.