Sales Clerks can work for various retail stores, including large department stores, shopping malls, locally-owned shops or boutiques. They work closely with other Sales Clerks to help customers learn more about products and how they can use them in their daily lives. Their job is to check the storeroom for customers to see if they still have remaining inventory of a particular product and notify customers of incoming shipments. They may also be responsible for cleaning surfaces before, during and after business hours, including mopping floors, dusting shelves and vacuuming entry mats.