One of my regrets is I treated my Log Book as a sterile place to document flight hours and aircraft types.....and did not add photos, and journal entries to more fully describe each flight and event related to those days.
I started flying gliders some years before helicopters. One of my gliding instructors told me to always write something about the flight in my logbook, even if was just a 5 minute circuit(not unusual in a glider on a poor day). I did that and carried it on throughout my flying career.