Andy Ruben has had a unique career path. After working as the Chief Sustainability Officer for Walmart, saw just how many products are bought and never used or thrown out, and decided to do something about it. In 2012, he co-founded Yerdle, a company that focuses on buying back and reselling products that might otherwise end up in a landfill, a process Andy calls “re-commerce.” Now he helps companies like REI, Patagonia, and Eileen Fisher with their own buy-back programs.