Okay, so my mother in law and my father in law both bought milk at the same time 1gal of whole milk and half gal of 2 % milk they are both a couple of days shy of spoiling the gal is almost gone but the half is not even open yet! what can I do save that milk I would hate for it to go to waste. I've heard of freezing it but for how long is it good in the freezer and when I defrost it would it taste like milk or would it be watery ?

Please help!!