Answer me this.

You clean the front porch, and the hallway, of the leaves and mud you have walked in.
Everything is clean and tidy till you go out and come in again - then it's back to square one!
However, if you do not clean for weeks it will not get any more dirty than it was on day one - not even one more leaf will get through..
How does this work?
Everything is clean and tidy till you go out and come in again - then it's back to square one!
However, if you do not clean for weeks it will not get any more dirty than it was on day one - not even one more leaf will get through..
How does this work?