I recently read a book by Wiliam Plummer called "Wishing My Father Well" in which a man discovers who his father really was by reading his old fishing journal's after his passing and fishing the places his father fished. I think in keeping a journal , you can record much more than just how many fish you caught. For me fly fishing bring's about a peace of mind and thought's apart from the everyday stresses of life that seem worth writing down. I think it would be a great thing to pass down one day. Just my two cents.