Crap! When I got the Sunday ads I just threw away CVS and Rite Aid ads because you were required to use their "Spy on what you buy" cards to get the sale price. Walgreen was the only one of the drug stores left I checked for prices. I might have to do what I do at Kroger and grab a new card every month and throw away the old one.
I use my 88 y/o uncle’s “loyalty” cards (and one card I found in a parking lot).
They can track all the purchases they want all day and night. None of them lead to me.
Your SOP is interesting though.