The next major advance came in 1982, when Sims put metal edges on his snowboard so it could be used in a wider variety of snow conditions. He went on to improve and expand the sport over the years, introducing new snowboarding styles, bindings and designs.
Commodity money is a form of money with an intrinsic value. Some of the best examples of commodity money are silver and gold coins. Currency(cash) or banknotes do not have intrinsic value and are virtually worthless in itself. It only has value because society views it as a unit of exchange. This type of currency is called fiat money.
In economics, any commodity which is produced and subsequently consumed by the consumer, to satisfy his current wants or needs, is a consumer good or final good. Consumer goods are goods that are ultimately consumed rather than used in the production of another good. For example, a microwave oven or a bicycle which is sold to a consumer is a final good or consumer good, whereas the components which are sold to be used in those goods are called intermediate goods. For example, textiles or transistors which can be used to make some further goods.