It would be nice to be able to see only the best value on the shopping list.
For example my favorite list shows that Tesco is the cheapest to by Alpen Muesli 1.1 kg (53p/100g),
but Alpen 500g are best value in Iceland (36p/100g).
This is misleading : if I am buying Muesli I am only interested in the the best value (price/weight) or the cheapest (if I was really skint).
Seeing the different size options as different product is not really helping.