very rarely. If there's something i really want, i usually get it as soon as possible/ i can afford it. I'm not a very good sale-shopper, and if i buy something on sale, it's almost always an impulse. If i want something expensive, that's on sale, i usually get it on hold for two days, think about it, 'would i buy it full-price?' etc. oh, and if i want something online, i might wait for the sale.