GET YOUR HANDS OFF THE DM'S NOTEBOOK!
But if your Dungeon Master's notebook looks just like everyone else's, how can you be blamed for grabbing the wrong one and taking an accidental peek at their notes? Get that fixed with a custom leather book jacket that fits around an (included) A5 lined notebook!
You can come up with your own title, such as 'Tome of the Dungeon Master', 'Ways to kill off my players' or use the name of your homebrew city - if it fits on the cover, I can make it. Choose from four different colours of leather and get everything stitched up with a colour of your choice!