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.
As a guy that had his inner ear literally scooped out, I can confirm custom ear plugs are a MUST HAVE for anyone. I use mine for swimming and places with a shit ton of dust cuz I can’t get water or other stuff in my ears or it makes them really hard for the doc to clean. They also just look really cool and I managed to get a few of my friends to get some as well.