Haha nice idea..Don't think I could do that - wouldn't want to lose what I wrote, but I like it. Sounds like "morning pages", the idea from the Artist's Way books. The idea is to write 3 pages quickly (by hand) every morning - exactly as you say, just dumping from your mind, writing anything without editing or censoring. You do that every morning without rereading. I tried that years ago for a few weeks, it's definitely worth trying. Especially good if you're stressed or have to unload emotions somewhere.