Make some kind of journal. I use my phone and take pics of my truck dash when I arrive at the lake for air temp, depth finder for water temp, and every fish with the lure it was caught on. My phone automatically logs the date, time, and location. This is very beneficial after a couple years of fishing a lake. I just look through my gallery the night before a trip see what I caught them on last year and the year before around those dates and adjust for warmer or colder water temps. I tried the paper journal but failed to maintain it after getting up a 4am fishing all day in the heat or cold then drive home, parking the boat, feeding the cows, and eating supper, I wound up napping for 8 or 9 hours.