I would bet it is a “coupon” shopper who collects coupons for free and cheap deals. I’ve seen programs on TV about them. They load up their shopping carts like the ones in the photo and when they get to the cashier with their coupons, their cash register receipt shows some ridiculously low figure, like $12.95. They have whole rooms in their homes for storage of all these goods, like huge pantries. It’s akin to an obsession for these folks, abeit they do get lots of groceries for almost nothing.
I don’t know how they do that, I have seen videos of people actually ringing up a negative balance and being given some more free food because the store is not allowed to pay out cash for someone to take food out of the store! I don’t think it works in this state, at least I have never seen any way to do it here. At any rate the only way to do it would be to just shop strictly for what is available at no cost and then store it till you need it or trade it to someone else for something or give it away to a food pantry. There is no way to take a list of what you actually need for the week and do that.