Often, we don’t know what we need to make our lives more convenient, until some new technology arrives to show us. People got by without the Internet fairly well in the pre-digital era, but can you imagine life without it now? If so, good for you! You’re a more resourceful sort than the rest of us over-connected Web crawlers. But the point here is that the same general principle applies to retailing. Once you’ve integrated or upgraded to some of the technologies described below, you’ll never know how you got by without them.