I have a Rodger Warehouse near to my home.
Asda start marking down the day before the expiry date, and at 6pm the day after everything goes down to 10p.
I have bought loads of bread, fruit, vegetables and cut flowers which can go in the fridge. I save about £25 a week.
I've not been to that company's warehouses but I've certainly used shops specialising in short-dated and out-of-date stock many times in the past. (There used to be really good one in Colchester, which was quite big, and a somewhat smaller one in Bury St Edmunds too. Alas, they've both gone now).
I suspect that many of the customers of that warehouse will actually be retailers hoping to sell discounted products onto their customers. Someone who, say, only has a tenner to buy a week's food won't be able to make use of a store that requires them to buy in bulk, as they'll want 'a little bit of this and a little bit of that' for their money, rather than one big box of the same product.
I've recently been using up stuff from the back of my kitchen cupboards, including things like canned meat products that were well over a decade beyond their 'best before' dates and dried pasta of a similar vintage.
Buen, at the start of lockdown we decided to use up the shampoos, conditioners, showers gels - toiletries in general - in the cupboards before we bought any more.
Still using them and we are not hoarders.
I don't bother looking at sell buy dates on tins and dried goods, although I was taken aback when I opened a bag of flour that had been in the cupboard for some time and lots of little 'moths' flew out. We didn't use that flour and gave the cupboard a good scrub
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