Entrepreneur’s inability to clearly and concisely convey his or her idea is the #1 mistake.
You have to be able to generate buy-in from investors, partners and potential employees, so nail down your “elevator speech” — what you would say if you ran into an important potential investor in an elevator.
Try using a Twitter-like template to refine the essence of your concept into just 140 characters. Once you’ve done that, expand your message to a maximum of 500 characters. Remember, the shorter your pitch is, the clearer it will be.