Airport retail shops capitalize on the wretched disposition of the procrastinator. Usual suspects such as the Body Shop and the Discovery Channel Store offer travelers a chance to hurriedly snag something meaningful for the family before boarding the flight home. But if Grandma has been hinting at some leather biker chaps for her birthday, head to the mezzanine of Concourse B, where Mile High Harley-Davidson has a selection of biker apparel, including T-shirts, leather wallets and jewelry. They also carry enough shot glasses to keep you stocked in gifts till next year.