Answer:
What can be any size or shape and gets bigger the more you take from it?
What kind of room doesn't have physical walls?
You can tumble in it, Roll in it, Burn it, Animals eat it, Used to cover floors, Still used beyond stall doors. Freshens whatever it is placed on, Absorbs whatever is poured into it. What is it?
When will water stop running down hill?
The most fabulous way to locate pots of gold
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?