Answer:
I donβt forget!
While you were folding a letter you got me. Usually you will do whatever it takes to avoid me but now you can't help but find me.
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths.
You use me between your head and your toes the more I work the thinner I grow.
There is one in a minute two in a moment and none in a thousand years. What is it?
What never gets any wetter no matter how hard it rains?