Before Walmart, Target, and Amazon became business and cultural touchstones in U.S. retail, Kmart reigned as the nation’s celebrated vendor of discounted consumer goods. Its promotions could provoke mini-stampedes of shoppers rushing to limited-time, in-store Blue Light Special sales items. Now, the last full-sized Kmart on the U.S. continent is preparing to close its doors, leaving a single convenience shop in Miami to operate under the once ubiquitous brand name.