限客销售国外有一家商店称“7岁儿童商店”，规定进店顾客必须是7岁儿童，大人进店必须有7岁儿童作伴，店内经营的都是7岁儿童吃、穿、用、看、玩的商品。这家商店采用这一怪招后，非但没有减少生意，反而有效地吸引了顾客。同介销售，美国有一家小店，店内的商品者是同一价格 Limited customers selling a foreign store called “7-year-old children’s store”, the provisions of the customers must be 7-year-olds into the store, adults into the store must have 7-year-old children as companions, the store business is 7-year-old children to eat, wear, use, Look and play with the goods. After using this trick, the shop not only did not reduce business, but effectively attracted customers. With the introduction of sales, the United States has a small shop, the store’s merchandise is the same price