Off the top of my head:
Never brought any notes into exam (in any form). That's just stupid imo.
- Multiple Choice from Yr 7-12...many times. Just sneak a look at the person next/in front of you. It's like a 1 second peek, and even then examiners can't really prove that you looked.
- Year 9 French, we had to write a story in French, and most of us were like wtf, can't do that. But the whole class cheated, and since there was only one class of French in the cohort, there wasn't really an issue.
And of course...who doesn't cheat in those Maths/English/Science/Chem competitions?
NB: Needless to say, it's not -good- to cheat. It's better to know the stuff.