I have always kept a journal, ever since I can remember.
I keep one still.
These days I use it to capture the world around me so I can make a song (or the idea of a song) out of the flotsam and jetsam of my days.
What goes in: words, phrases, drawings, ideas, images, scribblings, goals, notes to myself. Basically, everything. The journal is a trace of the circles and loops my mind makes when working on a song.
Take a look! I'll continue to post images from my journals as the days and months slip by.
Do you have a journal or commonplace book where you keep your ideas, your secrets, your declarations, your lists, the flotsam and jetsam of your day-to-day life?