In Switzerland there is a service called Twint, basically an app to send money to a phone number or to scan a qr code to pay. It is very popular at farmer’s markets, but also works on any payment terminal, since the terminal shows a qr code on the small display. The money can be charged to a card if you want, but also directly withdrawn from your bank account. So in this last version, Twint allows to pay electronically without using Mastercard or visa. I have always wondered why such a system was able to arise in small Switzerland and there is nothing similar in any other European country as far as I know.

In the linked video they claim the powder washes better (in addition to the environmental benefits) even at 30°. Also the cardboard boxes for milk DO have a plastic lining, but it’s not secret. Otherwise the liquid would destroy the cardboard. But this is OK I think, it gets collected and partially recycled. The “bad” microplastics are inside the liquid detergent itself, to ensure that soap and water remain well uniformly mixed.