I have figured out that on road trips in my 911, I must be licking my lips excessively. After a day of driving it, I have to use a chap stick as my lips are dry and sore. Chap stick fixes the sore lips. I have started to just keep one in my pocket and apply regularly on trips.
In day to day living I virtually never apply anything to my lips, except my wife.
Another one I noticed recently, whenever I go to kneel on the ground to inspect or clean a part of the car, I always use my right knee down first.
I am sure I have others, like everyone else.
What are things you do the same way every time without consciously thinking about it.