10 Simple Ideas That Made Billions

The slanket 4.2 million in sales....Unbelievable! The Snuggie wouldn't be caught in one! $40 Million in sales!!!

It is kinda like the title of the book Who Knew.  I know that the book is about another topic or other topics, but, who knew?  The paper clip, the bobby pin.  I invented one thing, and the very day I invented it in my head, I saw it in the tool department at Sears.  Dang!