1. Intellectual property rights.

Writers writing books, musicians writing songs, patenting inventions, photographers, illustrators, etc. can all earn royalties and obtain continuous income through royalties.

2. Financial management.

Purchase bank financial products, insurance, funds, trusts, stocks and other financial products.

3. Extended information.

After-sleep income, an Internet buzzword, literally means a way to make money while lying down. It is passive income. It does not require much time and energy to take care of, and it can be earned automatically. It is also a way to gain financial freedom and advance

A necessary prerequisite for retirement.

"After-sleep income" does not require care, but it does not mean that you get something for nothing. In fact, before you can obtain "passive income", you often need to go through a long period of labor and accumulation.