Answer:
You use me between your head and your toes the more I work the thinner I grow.
I am what bring things together. Without me everything you see would be a total mass or debris everywhere.
I am a certain five-letter word and become shorter when you add two letters to me. What am I?
I am an activity dogs are very good at when a ball is thrown.
I shave several times a day, yet I still have a beard. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.