 Number one, just go to stores that don't have these loyalty programs. Trader Joe's, Walmart, everyone just gets the lowest price possible. Two, look for coupons at the grocery store websites to print, snip, and then actually hand in. Three, this is what I do. Just ask for the discount anyway. Behind the counter, the cashiers usually have a code to charge the digital price without forcing you to have a loyalty app or a card.