It could have been a WIC thing (trying to remember the post I read about it on a parenting board years ago...): Your WIC card/check allows you to get certain items, if using the check you have to get all the items on the check/voucher at once, and you can use multiple checks/vouchers at a time. The people were complaining about waste because the wanted the additional WIC approved items (cheese, eggs, true staples not junk) but had to get the milk to go with it and they couldn't get powdered milk (that they could store and use for baking) anymore?
Or it could have been one of the uber-mega-couponers combining with a deal (I don't have time for coupon clipping but I've definitely bought a couple things because the sale plus the store coupon [things expiring in the next day or two so the store sticks a $2-3 off coupon on it] meant I was reducing my overall bill by adding it to my cart. Never seen those deals on milk though.
Some women go to supermarkets, take milk jugs to their boobies, press the boobie till it squirts milk. They fill the jug with their milk and put it back on the shelf.
Or it could have been one of the uber-mega-couponers combining with a deal (I don't have time for coupon clipping but I've definitely bought a couple things because the sale plus the store coupon [things expiring in the next day or two so the store sticks a $2-3 off coupon on it] meant I was reducing my overall bill by adding it to my cart. Never seen those deals on milk though.