This would be the glass on my storm door. I cleaned this glass today. For the first time in at least 6 months. I cleaned the sticky mouth marks and crayon scribbles from it. It was spotless. Crystal clear. As you can see it is no longer that way.
Wonder what happened? I greased up some kids with sunscreen and they made up a fun new game.
It's called "Stick Your Greasy Gut To The Glass And See The Cool Smudge It Makes On The Shiny Door".
This is reason 536 why cleaning is a waste of time.