Puzzling out the upsell-o-meter

Raymond Chen January 12, 2012 Jan 12, 2012 01/12/12

As I noted before, many grocery stores in the United States have a printer next to the cash register which prints out coupons customized to your purchases. Here's a purchase and the accompanying coupon. What is the story behind this pairing? Purchased: Diapers for newborn baby. Coupon: Save 75 cents on ice cream. Bonus chatter: While ...