Amy Greene and her 45 smiling sales associates help shoppers sparkle and shine1. What one advertisement or promotion elicited the biggest response, and why do you think it worked?We have an event called Sparkle & Shine where we offer a professional jewelry cleaning for customers. There is almost no cost involved; we do it during store hours over a couple of days. We promote it through a direct mailing, and it always gives us a boost. Customers can bring in the whole jewelry box—the more they bring, the longer it takes, and that’s wonderful because we can entertain and entice them. Itâ€