DS: What do you write down while solving?

I was just wondering what process other people use while solving DS problems.

I've found that about 95% of the time all I end up writing down is

AD
BCE

and cross off letters using the process described in the Manhattan guides. Very rarely will I actually write down an equation or small graph or picture. Is this normal or do most people write more? I'm averaging 1 min 23 seconds per DS question with 88% accuracy and am wondering if writing down more could help get my accuracy up.

Any suggestions or shared experiences will be greatly appreciated.Image may be NSFW.
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