Dream BigIs your idea destined for the big leagues? See if it meets these standards first.

Ideas are the currency of an entrepreneurial mind. To determine whether your ideas are hundred dollar bills or (gasp) pennies, you'll need a solid system to evaluate their quality and soundness. Veteran inventor Barbara Carey came up with a formula to help startup entrepreneurs do just that in her book,The Carey Formula: Your Ideas Are Worth Millions. The inventor of Hairagami, the $40 million-grossing hair accessory phenomenon, says her formula is meant to help inventors market relatively simple ideas. "You want a simple idea," she says, "and you want to make sure it's something people want."