2. Loaf of bread (you can spend more or less on a similar loaf, using a popular brand, but the supermarket own stuff is cheaper, could also make your own).
I'd love to know what the margin is on bread, if the milk is a lost leader with the cows being short-changed, bread must make up for it,
for a couple a bread machine is OK, but as soon as you have a bigger family difficult to get the volume.
if it is available at all where you live, the prices you have to pay for seafood that has not been farmed (and has some taste) and has a known pedigree is exhobitant.I also like king prawns, etc. Tuna isn't cheap either, most decent seafood is expensive.
I naively bought some tuna from waitrose probably 5years ago, definitely not palatable (grilled, still red in the middle) ,salmon similarly ... cheap tins of sardines have a more honest taste.