I do not like the 'club' cards at the grocery store. For one thing, I do not like to join. I like to be joined.
Secondly, they ask for something from me, namely my personal information which they will use to collect information on my buying habits which they can then sell, in exchange for nothin'. I do not give nothin' away for nothin'.
You say, Wait! They give you discounts if you sign up for the card.
I say, Pooh! All stores give discounts. This is how they lure you in when you would otherwise frequent the grocer down the street. The discounts are no better now after the club cards than they was before. Only now they're collecting my shopping data and selling it to people who in turn put together all my other shopping data and sell that back to the stores. I do not appreciate being bought and sold, and then on top of that being told it's such a swell deal for me.
So what to do? Used to be you could just ask the clerk to run a blank club card thru the machine and you did not have to give nothin' but the money in your purse to pay for what you bought. Now they won't do that, and they get shirty if you ask your neighbor in line to run her card for you. They say you're not supposed to do that. Like I cared.
So here's what I do. I say I forgot my card, and they ask my phone number. I give the phone numbers of one of my friends who has a card. I switch it around just to be fair. I'm thinking of getting a card just so's my friends can do likewise.
Now the store's marketing data about me and my friends is all messed up. If enough people do this, it will perhaps remind stores of what they should aready know: you get what you pay for.