Easiest on the iPod Touch / iPhone using it's "Notes" app, you type in your notes/study guide or other things such as answers you got from someone onto your iPod/iPhone. Then when it's test time, just put the iPod/iPhone in your pocket, slide it out and look at your notes during the test. Just don't be stupid and get caught.
The result of “Michelle” when doing that stupid TikTok trend where you take away that first and last letters of your name. Congratulations. That was a real big accomplishment.