Here's what I lay out the night before to prepare for an 8 AM exam:
1. A piece of paper with the date, time, and location of the exam in case I'm not thinking straight when I first wake up
2. The clothes I'm going to wear so I don't need to spend time choosing them tomorrow
3. At least two pens to write with
4. Something quick and healthy to eat in the morning like a pear or a bowl of oats
I'll set two alarms to ring at 7:00 and 7:01 AM. With any luck, 8 AM will find me ready to think and write at peak ability.