Answer:
A large oasis in the desert. Come with cash and leave with none. What am I?
I run around the streets all day. Under the bed or by the door I sit at night, never alone. My tongue hangs out, waiting to be fed during the day. What am I?
Born in the ocean and white as snow. When I fall back to water I disappear without a trace.
I don't live within a house nor do I live without. Most will use me when they come in and again when they go out.
I am black and white and full of fuzz
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?