The one that actually made me angry was when I bought a new pack of toilet paper before I used up the old one, and saw that the new pack (two rolls high) was two inches shorter than the old one.
It's toilet paper for cryin' out loud.
I stick with basic Scott in the giant packages always buying on sale with coups. Come to think of it... I do recall the rolls changing size... but it was width, not height. It changed how I would store them in a closet.