This! It’s a kind of self-hypnosis, where you force yourself to become hyper-conscious of things you really need to keep track of.
I used to grab my chattels and go out the door…until the day I left my keys behind. Now, I consciously observe myself putting my keys in my pocket. It’s become a kind of mental ritual. I must clearly visualize the action before I allow myself to be satisfied and head out the door.
It can get a little wearying…but $150 for a locksmith was a nasty awakening.