Reply #2: Explain a billion this way

[Warpy]

A rich man married a trophy wife, only to discover she insisted her mother move in with them. Not wanting to disturb the ongoning honeymoon with the trophy wife by evicting his mother in law, the rich man decided to send the old gal shopping. He gave her an allowance of a thousand dollars a day, told her to come home when it was gone.

At that rate, a million dollars would keep his mother in law out of his hair for a little less than three years.

At that rate, a billion dollars would keep her gone for nearly three thousand years.

And that's how much a billion is.