If you want to earn money, then one way or another you need to think about developing a business. It is an ongoing process that must be kept in motion. What I just did not do in my life for my 35 years. Now I'm interested in commercial car charging stations from cyberswitching. I think that if you buy their stations for charging electric vehicles, you can have a stable passive income. In San Francisco, many people have electric cars, so this is a very hot topic.