Bracelet Method

If you manage to get your hands on an answer sheet before the test, make yourself a bracelet with different colors of string. It'll look like one of those knotted friendship bracelets, but match each color to a letter and you'll be all set. For example if A: Green, B: Yellow, and C: Pink if the answers were B, C, A, A, B then it would go yellow, pink, green, green, yellow.