Two-ply

What I'm grateful for today:

2-ply toilet paper

Can someone please explain to me why 1-ply toilet paper even exists?! Don't you end up just using twice as much, but it takes forever to unroll? I really don't want to spend any more time in a public restroom than I have to, especially trying to unroll the toilet paper. That being said, if this is my biggest annoyance today, then I am truly blessed :)