Money from an empty box?

One of the largest houses in Richmond is owned by a man who made a fortune from empty box's!

Who would have thought so much money could be made from air!

Yes, he amassed a fortune from the Big Yellow Storage Company.

With today's financial challenges, i wonder will he be a winner of loser? Probably busier!
So i ask, which niche can you create which wasn't there until you created it, yet the demand is high?
Love Jo xx