I keep a seasonal notebook. I notate everything, weather, growth habits, any weird happenings, insects, when I water, etc. I do this on a weekly basis on all the plants and varieties in my garden. I have done this for many decades. My garden is fairly big and I grow many different varieties, mainly different varieties of peppers and tomatoes. Some years I'll grow 25-30 different varieties of tomatoes and half that many peppers. I would still have to maintain a handwritten log so why go to the trouble of doing the same thing twice. Many of my notebooks I haven't looked at in years and others are getting rather worn but I can go to 1977 or last year in a matter of moments. So, for me, putting everything on a thumb drive would be a waste of time.