Bank stocks are among the most obvious ways to profit from the health of the American economy.Banks are occasionally referred to as the economy's heart (or, for the less poetic, circulatory system), pumping money anywhere and everywhere it needs to be. It's a decent metaphor!Most of us naturally think about banks from the consumer's point of view – savings, credit cards, mortgages and the other financial products we need to get through life. But banks also carry the lifeblood of business and investment, whe ...