> Where I'm from, plastic bags are no longer the norm for supermarkets to pack groceries in, and so most people carry their own re-usable bags to the store Thi

> Where I'm from, plastic bags are no longer the norm for supermarkets to pack groceries in, and so most people carry their own re-usable bags to the store This used to be the case here as well (Slovenia), until supermarkets started introducing the self-service check-out machines. Those can't be used with re-usable bags (or sometimes can be, but with significant annoyance to everyone present, since an employee must manually check your bag).