I taught two lessons today, and although it is cold, there is always something to learn.
I don't see a lot of notebooks being used during lessons, but a small percentage of my students tell me that they write things down as soon as they get home, or in their car, so they remember the lesson.
FANTASTIC IDEA. You never know, down the road, months from now, what you will be thinking, doing, working on, and sometimes the old information means something new later on. Keep it all. Keep a notebook in your golf bag. That way you can jot down anything that works during practice sessions or while you are playing or during/after a round of golf. Maybe it's good that it's safely tucked away in your golf bag while you're watching the golf channel... :-)