I bought a piece of 1.5 inch stiff foam to try to fix a sag in a bed. It didn’t work but having that thick piece of solid foam around has been a life saver.
Need something flat to put a laptop on? Throw it on the foam. Going to be doing something that requires you to be on your knees for a while? Get the foam!
It went from stupid purchase to something I’d gladly replace if it broke.
I got foot pain by using crocks, according to my phisio, so now I am learning to walk bare footed at home or in tight fitting shoes outside. Also I need hard shoesoles because apparently I have been using my toes too much to walk