The Audio and Video Products Div. of St. Paul, MN-based 3M Co. has scored an impressive victory in packaging source reduction. This leading producer of bulk videotape for the film duplication industry designed a returnable and reusable package for its products that: * eliminates 1.4 million cu' of waste annually, * reduces the number of packaging components from 11 to three, * reduces the variety of packaging materials from five to two, * reduces labor costs not only in 3M's Hutchinson, MN, plant but at its customers' plants, too, and, * saves $4 million annually in packaging costs.