I'd like to suggest saving a draft version of a PM I'm working on. I may not be able to finish it for some reason. I don't want to have to retype it.

I may need to search for something that I want to put in the message, like a link or something. So, I want to save that until I find it. Also, because I use a public computer sometimes, I can't simply save it in Word or something, then copy it back.