Sometimes things look like bargains that ain’t such a good deal. In most supermarkets on the price sticker it says cost per kg/litre/whatever it’s best to look there to see the real savings. Value toilet roll for example isn’t such value you might get more rolls but less sheets, buy the one with most sheets per £, or if like me just use your hand. We go to costco for bulk items, Lidl for food and the farm shop for fruit and veg. I grow a few things on balcony, used to grow loads when I had a garden.