For the past seven years, Cartique Car Wash has been hand-washing and detailing cars, trucks, boats, and jet skis in the Roswell area. This Cartique location (there are two) has an interior detailing bay and offers several types of discounts. For families with two cars, the second car wash is 50% off. Every tenth wash is free for everyone, and buying three washes in advance means the fourth wash is free. Members of the Cartique discount club can wash their cars as often as they want.