Watch copper go. Here's a great site to check the values of base metals. Perhaps think twice about throwing away that copper wiring.... Check the going rate of aluminum before you go to sell your old cans....
www.kitco.com is a great place to check precious metal values too. Gold has been trying to get to 700.00 an ounce but just can't seem to get there....those pins and tracings are often gold. Think twice before throwing out those cards. They will sell as they are in lots if you don't want to mess with chemical extraction of the gold.