Only those silver coins which were much worn by usage or in any other way defaced or reduced in weight remained in current use; it did not pay to export and to sell them on the bullion market.

Bring your old pair of running shoes with you; a knowledgeable salesperson can examine the way they're worn to see how your feet function and to determine which shoes might be right for you.

A simple armband worn on the upper forearm can detect muscle activity and bio-acoustic information that provide a new way to interact with computing devices.