When you want to write something amazing

Seriously there are times when you want to write something amazing and you don't have a clue about what to write. Happens to me and most of other people as well .The most irritating moment being when you have an amazing idea and you forget it . Yep that's exactly what happened to me . Just had something in my mind and was sure it was a really good thing to write .Now its gone *poof*. I never