"No, I haven't an Air Miles card, no I don't want one, just put the application back in the pile... nor an iRewards card: the probability of me having one is the same as you having passed gradeschool math; never heard of a Plum card, not interested really, lookit do you want me to buy the chewing gum
or not ?"
Worldwide, every 10-20 microseconds, an honest customer is harassed by a store clerk in an attempt to get them to buy into a marketing scam of one sort or another.
Presenting the Cardless Card. We won't take your personal information or your money. We're not allied with any financial institutions or mailing list producers.
Simply show the card at the cashier for an instant 1% discount to reflect the money the individual store is saving by not having their 'droid waste their time trying to sell you something you're not interested in.