Answer:
It is worldwide, but once only a spider could weave one
Gold in a leather bag, swinging on a tree, money after honey in its time. Ills of a scurvy crew cured by the sea, reason in its season but no rhyme.
It is the electronic version of junk mail or a salty meat in a can.
What gets beaten, and whipped, but never cries?
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
You use it between your head and your toes, the more it works the thinner it grows.