You do not need CAR, CAO & CAAPS with you for the PPL exam. When I did the PPL exam I didn't even know what they were except for what the acronym meant and I still got over 90%.
Know where to find stuff in the VFG.
You used to be able to put post-it notes in it to highlight the sections and write on them eg. fuel but I don't think you can write on the tags any more.
Tag Weather, Refuelling regs, Fuel planning, time conversions and f&l light as a minimum.