The Girls Only Method

1. Takes a bit of planning and is a bit gross, but if you're desperate, you're desperate. Ask to get out of an exam to go to the toilet. If they say no then say subtly to a woman invigilator you need to change your pad (make sure you're not on your period that day, thats a bit gross). Earlier on, you will have written down notes on a sanitary pad, and put this one on. If you need more notes then write them on a new pad and wrap it back up. When in the bathroom (if it's a real exam the invigilator will probably escort you) look at the pad you have on and quickly memorize it. Then change it, put it in the bin, and replace it with the pad that has more notes. Memorize them quickly and then come out of the toilet as if nothing is wrong. Go back to the exam and scribble down the answers.
2. Hide the answers in your bra. During the test, fiddle with your shirt and look down to see the answers or notes. No teacher will dare call you out!