Oh thank goodness you replied, [Technya]. I was about to feel really guilty for being the one who was gonna come in and be all "I used to cheat all the time. 8D" I also used to do that same thing--make the tiny cheat sheets and then realize before going into the exam that making them perfect ended up teaching me the material/formulae to use, haha.
But uhh... yeah! I never used to cheat, and I frowned upon it so much up until grade 11 or 12. It was then that my friend and I got stuck with the worst teachers ever for a few subjects. :[ In Physics, which is the first time I remember explicitly cheating, I swear everyone in the room would partner up with the person beside them and help each other through the tests. We'd have 100+ multiple choice questions plus the rest of the questions on the test to complete in about 1.5 hours. So my friend and I would split up the multiple choice questions and each do half or something just to finish it. XD We got caught cheating in another course once--we would cheat all the time and the teacher never noticed (or sometimes he'd notice everyone looking at each other's papers and just be like "...okay work together in pairs on this test") but one time? We had a substitute teacher who caught my friend looking at my paper since he hadn't studied the night before. So the next day we fully expected a lecture or something but the regular teacher thought we were going out, and really liked my friend, so he just said, "I know you like Erica, but you have to keep your eyes off her during tests." OH MY GOD WE NEARLY DIED OF LAUGHTER. XD; Of course we didn't bother correcting him but... we were far more careful after that. :p
Anyway, I don't cheat anymore, probably because it's nigh impossible here in university and the stakes are so much higher.