Play habits
Make a Spoiler-Light Game Journal
Write down your current area, open questions and the mechanics you want to try. A few observations are enough to make a later session easier.
Start with the practical details
Use neutral headings when friends may see the notes. Keep plot revelations in a private section.
Make the plan flexible
Separate what the game explicitly told you from your theories. That distinction can make revisiting a mystery more enjoyable.
Try this on your next trip
After a session, record one clue and one next step before closing the game.