Example: An "older" person, living alone, with various ailments, without a car, living away from home, goes shopping. He usually does this once or twice a week. As a relatively thrifty person, he divides his shopping between different shopping lists (e.g. MIGROS, COOP, etc.) depending on what is available. As he travels by public transport, he first (for example) goes to MIGROS, buys what he needs, then continues by public transport to COOP and now disaster strikes! What to do with the goods he has already bought. Carry it through the whole COOP and withstand the sharp looks of the sales staff (after all, he did without the receipt in MIGROS to save money)? How can he prove that this is a regular purchase from a competitor and has been paid for? At the checkout again: "What are you carrying in your bag? Couldn't the bag be deposited somewhere before the new purchase? Wouldn't you run the risk of someone helping themselves to the bag and disappearing without saying thank you? In the past with a car this wouldn't have been a problem, as you had the interior of the car available as a depot and today good advice is expensive