I haven't noticed any difference. I have always used skim milk, even as a child, but drink very little of it. (Except when I was pregnant with my first child 20 years ago...all of a sudden I was coming home from uni classes and chugging cold milk straight from the carton! Never had anything taste so wonderful before. Thought I was going crazy until I found out I was pregnant.)
The skim milk in the US was blue, watery and "thin" when I was little, but nice and creamy now, just like here. Maybe it varies from region to region?
I also put bread in the fridge sometimes. Especially if it is hot and humid.