Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
When I am caught I am thrown away. When I escape you itch all day.
Some people avoid me some people count me some people just consume me
My first is high my second damp my whole a tie a writer's cramp.
I move without wings Between silken string I leave as you find My substance behind.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.