You know - in all reality for the Canadian bagged milk - I'll explain why.

Whenever you open up your jug of milk, you've opened it up to the atmosphere and germs etc that can be lurking in your fridge and what not etc - bagged milk is essentially sealed bags of milk, that you use only ONE bag per day. You cut open the corner, put it in a holder, and voila. Maybe it'll only make it through breakfast, but its very rare for it to make it through an entire day. So its really all about fresh taste day to day