Canadian milk comes in smaller glass jars (delivery and store bought), larger glass jars (directly from the farmer), cartons of all sizes (stores), bags (stores), and plastic jugs (stores). Some people choose to latch themselves onto the udders of cows out in the field too when they're really thirsty well out for a walk. There are laws against this now to protect the farmer's income of course. In the country(as in rural areas) it's fine among neighbours though.