I grew up in Alberta, and totally recall the milk bags. As stated with other commenters, we had a plastic pitcher which was perfectly shaped to hold the bag and pour milk from it when you cut the corner off at an angle. Been eons since I had seen them. But with the resurgence of some old school pop shoppe pop I was delighted to finally see restored to my grocery store, it wouldn't surprise me if there's still some out here being sold. Now to await Happy Pop's revival...