How did people buy things before money was invented? By bartering! Then we graduated to using IOUs and commodity money aga's finally the Chinese created coins and then notes. The Jews created cheques and then came credit cards. But huge innovations happened once the internet became mainstream. Online payments and mobile wallets are increasing in popularity. And the latest innovation is bitcoins or virtual currency. If you were the President of a new country and had to create a new currency, what would it be?