Don't forget your:
Most Adventurous and High Point
(They don't do low point anymore).
Be able to sell yourself in a sentence... e.g. My most adventurous point was going to BLAH and leading a group of BLAH while overcoming problem BLAH (you get my drift?!)
If they ask what you high point was, don't just say 'passing my A Levels' exaggerate the sentence to sell it/you.