I have kept logs for a long time. Excel is the base for my log. I started using one page per fishing day, and have these pages in the back of my book. I keep it inthe boat and I can check what happened last year, year before that ...etc. I now have the new and improved sheet that has 2 days on one sheet, I fill in the blanks and do a lot less writing. Using the old pages from previous years for references, I have checked areas that I fished the same day last year. That hasn't worked well for the exact date/location, because conditions this year are different than last year. But by trying places that were working before that date or after that date has helped put me on to fish. At the very least, it reminds me of places I should check out. I could send you a blank of what I use, and maybe it will help you develop one you like. Dave.