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.
How many times have you nearly pinched yourself with them using them this way? lol
Fortunately, I have very small ones. I bought bigger ones later, but knowing myself I keep them out of play range.
Slo mo guys made a video smashing magnets together, and they were way more nervous than in the explosions or firearms videos!