I went to a new store that opened recently. The name is Holdbart, which is a kind of pun, but one that is... complicated to explain, because the terms we use for the things involved are not directly translateable.
But the idea is that they purchase, and resell all sorts of goods that have been removed for other stores' shelves for whatever reason, or any cheap bulk goods they can find. So the prices of pretty much everything in the store are cheaper than you'd find elsewhere.
They have stuff you won't find elsewhere any longer, and some curious stuff from stores I have never even visited.
With this they try to reduce the amount of wasted food in the grocery industry.
The name... okay, so our equivalent term for "expiry date" translates more directly to something like "lasting date". Holdbarhetsdato. So "Holdbart" refers to how it's still lasting, that it's still good to sell, and use. It's just been removed from regular store shelves because it was taken out of circulation, went out of season, or it was approaching expiry, but not quite there yet.
Or I guess maybe simply that it was selling slowly in some other store, and they decided to get rid of it cheaply.
As I understand it, Holdbart are free to lower the price to pretty much whatever they want. It's all surplus goods, so as long as they sell it for more than they paid for it, they're good. Meanwhile a regular grocery store has to stay within the standards of their chain, and aren't allowed to just make goods cheaper on a whim.