This workshop style presentation will involve active audience participation to determine the total cost of ownership—including the often "hidden" costs related to sustainability — of similar products sourced in different ways. The goal is to uncover key aspects of buying sustainably while maintaining the best overall purchasing value. Participants will learn how to distinguish between material, transportation, and other key parameters to identify the most sustainable choices; incorporate environmental and social costs into sourcing decisions; and identify ways to promote lean with green thinking into supply chain management. A hands-on exercise—with a friendly competition between groups—will determine the lowest total cost of ownership of example bid results. From this workshop, participants will have a draft scorecard, which serves as a practical starting point for incorporating sustainability into sourcing decisions back at the office.