Whiteout Cheat

If the notes have to be handed in after a test:

1. Write your cheats on the page in pen.
2. Use the tape type of whiteout and whiteout all your notes.
3. On the day of the test, use an eraser and rub it off.
4. When you're done, whiteout your notes. And doodle on it so it won't look suspicious.