I've done no revision specifically for the May/June exams but I've done some reviewing of topics for mocks, and I've had two mocks in a few subjects so that's all good.
I usually make spider diagrams for major topics within subjects, I've found that to be v.useful. I'm guessing flashcards and minigames are also great too, but it's not worth the effort in my opinion.
I'm predicted all A*s and so are most of my friends, but there's no chance in hell I'm going to achieve that, especially in Art.