One of the safest ways to involve in a business is by investing in someone else’s business. When you invest in someone else’s businesses, you make money while sleeping because you do not have to actively work in the business. If you have invested in profitable business, you will be making guaranteed income. Well, Jeff Bezos worked for 10-15 years to make Amazon a profitable business, however, Warren Buffet invested in Amazon and now he makes money from Amazon without actually working in Amazon. Well, Warren Buffet actually makes money from a lot of companies including Coca Cola and Apple but ne never worked in these companies.