First, I must say that keeping the money in the bank is not a good option: the interest you receive is equal with the inflation rate, so you will not gain anything.
Investment in bonds is a better option, they are guaranteed by governments, and you receive around 5% per year. Minus the inflation, it remains around 3%. So, you’ll never get rich by investing in bonds.
Stock investment offers a better return, and I offer in my package only stocks from top US companies.