The majority of my writing is done in a notebook. The kind that you carry in your pocket. Not the one that needs batteries or a power cord. I take down thoughts that strike me as important. I make notes of things that I aspire to do or change about myself to make me a better person. I write reminders of things I want to research when next I am at the computer with access to the internet. Sadly the cause of the demise of the Encyclopedia Britannica, and at the same time, so much better. I examine feelings and attempt to put them into words that are better than things like, what seems to me a bland statement. Things like, 'Live in the moment' are fine, but do little to express the feeling that you get when you do actually realise that is what you are doing.
I do have plans for a fictional novel based on my own experiences. Whether that ever comes to fruition is another thing. I seem to lack the time, inclination of motivation to get past the outline I've already drafted (in pencil at that time) as I don't see it as going any further than the paper I write it on.
I do tend to have my brain ticking along as much as possible with the motive to think of something worthy of noting down, just to have an excuse to write. The fountain pen only adds to the experience. And Carl described the act of slowing down and thinking about the writing very nicely. ;)
Mick