I had the thought many years ago that I would have appreciated so much my grandfathers having kept a journal, especially a hunting journal, and passing it on for heirs to read. So, I began a hunting journal in which I write a description of every hunt, good or bad, and the details. I also include hunting licenses, duck stamps, etc. I expanded that idea later to include writing down daily things of note or interest in a calendar book that has a large "square" for such on each date. Some days I write nothing. On others the "square" is hardly large enough. I have found the latter to be invaluable to me in my work as well.