I am 58, nearly as ripe as lynn90, on meds the last year, always fully occupied.

Not a tidy person, I have systematically made associations between things and placements , and found the logic in where I and others place things. Then these placements were settled, at least for important items like keys, money and bills.
Doing routine tasks and paperwork, i obeyed my head and had frequent small breaks, moving around.
Now, money, keys, cards, cell phone, meds, have their place in a small waist-bag, that I always carry about (had some unpleasant experiences before that).
Somehow, it must have worked