Amazon is intensifying the online battle across many fronts, including the construction of new distribution centers designed to get orders to the customer as quickly and cheaply as possible. Retailers are fighting back, using their stores for online order fulfillment in a strategy that has the potential to strip Amazon of its competitive advantage. Beyond the competitive opportunity, retailers that have rolled out ship-from-store programs have also seen significant growth of both online and offline revenues through "save the sale" tactics as well as improved margins through the optimization of their supply chain. This report looks at the end-to-end business case for building out a store-based fulfillment program.