As with many/most Ontarians my age, I don't recall ever having milk in jugs. I've seen them at the corner store, but these days we don't go through enough milk for that; we just buy cartons and dodge the whole thing.
I do also remember that every family had one of these stuck to their fridge:
Probably still do.
ratbastid, milk extraction is accomplished using the above pictured implement, and one of these to hold it:
I say out perfectly fine, thank you.