How Currency Works

Currency seems like a very simple idea. It's o­nly money, after all, and that's just what we use to buy the things we want and need. We get paid by our employers, and we use that money to pay the bills, buy our food, and purchase goods and services. We might put some in a savings account at the bank or invest it in stocks or real estate, but for the most part, currency seems like a fairly… » Full Story on HowStuffWorks