For this very reason I always get the small cartons. And they fit in my fridge better.
We should all make scones with our spoilt milk...apparently it's really good for them.
I don't think I want soda in my milk. It reminds me of my Mum in law, cookng her veg with soda so she could kill them enough to suit Dad in law's taste while they stayed green. And that reminds me of how irradiated fruit always goes limp and brown very suddenly just whenyou were hoping it would get ripe!