Best method to keep milk to last longer?

Best method to keep milk to last longer?
I don't think there is a method help milk last longer.
Best bet is to just leave it in the fridge and hope it doesn't go bad.
Or drink it all before the expiration date.
Store it in the refrigerator on the shelf. Not on the door. The temperature is not constant on the door.
give a pinch of salt when you first open container