White Ink Method

1. This is more a case of hiding your notes/cheats in plain sight. The day before a test write all the cheats/notes on your coversheet, notebook(or in/on another place/object that you are sure to have around on test day). Write in a barely visible color, e.g. pale yellow or white (or another color that is camouflaged by the object it is written on). They also sell skin colored gel ink, depending on your skin color this would be another simple method to cheat.