DO: Ensure that every opportunity to sell is taken advantaged of. In this case, not only is there an attractive price point sign, a monitor is added to engage customers. It provides not only product information but also emotional appeal to shoppers at the point of purchase. DON'T: What a waste of selling opportunity. Not only does an empty sign stand convey lack of attention to detail, it also becomes a shopping hazard! This is a lawsuit waiting to happen.