Shaula Evans at 2012-11-09 15:49:18:
This is great advice, Scott.
I have a strong aversion to journals and diaries that I've never been able to figure out, so my version is slightly different.
I have a few very close writer friends. I write them every day when I'm on a big project, recording close to what you describe above. And I keep those emails in a collection for my own records.
Ultimately not that different from your Word doc, is it? But writing to another person makes it possible for me.
Note: Two good books that come out of similar processes, which I recommend to everyone here, are
1. Year of the King by Antony Sher, in which he records his process of preparing to play Richard III with the Royal Shakespeare Company, taken from his journals and sketchbook. It's a dramatic and riveting read (you won't believe what he goes through) that provides great insights for writers as to what a good actors does when he gets his hands on your script and tackles the role you've just written.
2. Dr. Who: The Writer's Tale, by Russell T. Davies and Benjamin Cook, chronicles Davies' experience writing Dr. Who, drawn from a long-term email exchange between Davies and Cook. I was afraid that recycling email into a book would produce something cheesy and flimsy but the resulting book is surprisingly substantial with good information on how to write, on the emotional aspect of being a writer, and the business of a writing career.
If you keep those notes today, through whatever means works for you, you may have a book on your hands in the future.