Answer:
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
So cold damp and dark I am. To stay you would refrain yet those who occupy me do never complain.
I travel in a gaggle.
I am the word that is always spelled correctly by everyone.
I am an English word that is as long as I am valued.
I always have to work with something in my eye. What am I?