Answer:
I am the place to turn to when nature calls. What am I?
The more you take away from me, the bigger I shall get. What am I?
The shorter I am, the bigger I am. What am I?
You use me from your head to your toes. The more I work, the thinner I grow. What am I?
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
Keep doing me to avoid lens dryness