The most valuable photo you can take of any new appliance is not a glamour shot for social media, it is a clear image of the ...

Calvin Westfall, a 59-year-old vending machine owner from West Virginia, made a surprising discovery recently while sorting through the cash from one of his machines. Among the familiar stack of ...

Pull any bill out of your wallet. See the dark green numbers on the top-left and top-right corners? Those are serial numbers, and some are more rare than others. If you happen to have paper money with ...