Answer:
It is a form of plastic money.
It comes only before, it comes only after. Rises only in darkness, but rises only in light. It is always the same, but is yet always different.
What comes in many varieties and can't be seen or touched, but it often makes you move?
Makes dough grow
What word becomes shorter when you add two letters to it?
In your fire you hear me scream! Creaking and whining yet I am dead before you lay me in your hearth.