Like many people, when I first heard the concept behind Twitter, my first thoughts were, “Who cares what anyone is doing every moment of every day?” I certainly didn’t want to know what my friends had for breakfast, or which airport they were in or what outfit their cat was wearing. I have a hard enough time keeping up with my tasks at hand, much less sharing with the world what I am doing every moment. But, I joined Twitter because, you know, it’s the hot thing. And us retailers …