I admit it, sometimes we go shopping in Germany. It's so close for us... In Germany there is the Payback bonus system, in which various providers participate. What I find a clever idea, however, are the e-coupons. You receive regular newsletters with the latest offers. Instead of printing out the coupons, you can also load them onto your Payback card. For example, 5x Cumulus points on your next purchase or 4for2 diapers. That way, the cashier doesn't have to endlessly scan coupons and I don't have to cut anything out and always remember to take it with me. I still find this a convenient and good way to shop.