It's the only time I have been glad of a 3 hour a day train journey.
What saved me were the little mnemonics and diagrams I would come up with for remembering stuff.
I really recommend learning some memory techniques for remembering list items. I memorised all the annexes of the Chicago Invention by identifying them with parts of my morning walk to the station. I can still remember them all years later.
In every exam, as soon as it started I would draw or write out around 5 - 10 diagrams or phrases I had memorised and use these throughout.