Make money online: YES

A self-service car wash business is generally remote-friendly as it can be managed from anywhere with proper systems in place. There are no hidden in-person requirements, as customers operate the car wash independently. Online discussions on Reddit and forums suggest that this side hustle lives up to its hype in terms of profitability and flexibility. Success may depend on location for access to clients, but time zones and equipment are not major constraints. Setup costs range from $10,000 to $50,000, and profitability can be achieved within 2 to 6 months. One potential gotcha to consider is ongoing maintenance and upkeep of the car wash equipment.