In southern Norway, a lot of small farms, and these farms there are shops that sell what is grown and produced on this very farm. There you can buy fresh eggs, preserves and jams, vegetables, potatoes and knitted items for children. And in these wonderful shops no sellers.
In one corner is a calculator on which the buyer considers how much he has to pay, and a box where you want to put your money and take delivery.
Everything works on complete trust and honesty. Nothing prevents just take and leave, but no one does. Picked vegetables, weighed, counted how many should put the money and took the surrender. And it is in order.