What does your project promise to deliver? Take that promise, fire up Twitter and write your current project's Twitter-promise - a twomise - using less than 140 characters. Make the language concrete and testable. Sounds easy, right? It's not. It's surprisingly difficult. But it's an incredible way to focus your mind on what is important.
Think of the iPod: "1,000 songs in your pocket".
The following example is from the wonderful book "Made to Stick":