Multichannel retailing has become a market imperative. Consumers who shop in two or more channels are often much more profitable than single-channel shoppers—although they expect a seamless experience across stores, catalogs, Web sites, mobile sites, call centers, TV networks, and direct mail. It’s a daunting challenge, but retailers often overestimate its difficulty. Rather than focus only on big investments in technology integration, retailers should also make smart investments in coordinating activities, aligning organizational incentives, and targeting high-value consumers.