Wasn't there some slogan years ago for a card of some sort that stated "never leave home without it"?
Anyway, ... Yes... I do have and use the Airmiles card thing. The catch is, it takes forever to actually be able to use it for something worthwhile just because the point system is so high.
Actually, I have a lot of gimmick type stuff though. Two of the main grocery store chains back home had a "Bonus card" type thing, Hallmark has their "Gold Crown", CVS Pharmacy has their "Extra Care" card...
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