Coupons. Discounts. Sales. We all love them. Anything that allows us to keep more money in our pocket can only be a good thing, right? Any signage at stores that says "buy one, get one free" or "50% off" can be so disarming. It's as if it gets our "spend money" sensors tingling. Ironically, coupons and deals compel us to spend money we would otherwise not shell out. Most consumers don't want to feel like they're missing out on a great bargain, so they're willing to purchase something they might not even need or be interested in. It's all psychological: we  care more about saving money than the actual product we're getting. "If I don't jump on this deal now, the price might go back up." Or so our thinking goes. Is it any wonder retailers have been so successful at driving shoppers to the checkout lines by imposing time windows? ("Hurry! This deal ends soon.") I work in and studied marketing and psy...