There is usually one cashier at rush hour. It is rare to find free packages. It is not always possible to take the change completely, there are not enough pennies. Therefore, in most cases I prefer to pay with a bank card.
In this regard, I suggest making a discount card so that you can accumulate points and subsequently write off pennies.
Sometimes there are no necessary products, for example vinegar.
And they always work one at a time and at the same time there is a queue of two kilometers (((