Use the two-bucket wash method to separate clean and dirty water. Avoid automated car washes with abrasive brushes. Apply a ceramic or wax coat monthly to shield your paint.

Check for certifications, reviews, and whether they offer hand-washing options. Avoid places that reuse dirty towels or water without proper filtration.

Use a brush attachment to loosen debris, and an interior cleaner safe for plastic, vinyl, and leather. Don't forget to clean seat belts and door pockets!