My club like others is closed on xmas. Want a fun exercise, walk your course backwards. Literally.
Start at 18 green and go in reverse. Take in every nuance and subtlety on the green. Varying rough and potential lies. Visualize different approach shots for various pins. How chips and pitches will play, release. Note any varying slopes. Take in any hazards, trees, forced carries, up/down hill lies. Gauge your shot pattern. Literally take notes while your doing it, especially if you have a yardage book. And bring your rangefinder. Bonus if its raining because you’ll see how the greens drain.