If you have extra cash on hand, one of the easiest way to generate passive income is investing your money. There are many investment options to choose from, but one of the preferred option is investing in stocks. Depending on your risk tolerance level, you may invest in low-risk dividend paying stocks, value stocks or even invest in high-growth high-risk stocks. Inflation averaged over 3.05% yearly since 1926, and keeping your money in Bank savings account would have earned you less than the inflation.