Many wanted to join the coalition but had made difficulties in choosing the project and wondered what kind of industry and project to choose. It is recommended here that a self-help car wash could be considered. The opening of a car wash is a potential entrepreneurial project. The following are some key points: demand: as environmental awareness increases, more and more people are focusing on how to clean vehicles more effectively. For those who want to clean their own vehicles, the car wash offers an economical and environmentally friendly option. Clients: car washes mainly serve consumers who have high demand for vehicle cleaning, especially those who wish to take control of the whole cleaning process. Equipment: the operation of a car wash requires the provision of cleaning equipment, such as high pressure water guns, detergents, mops, etc. In addition, cleaning tools and protective supplies, such as gloves and masks, are required. Location: selection of a suitable location is es...