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.
A wedding ring. Turned out that third time was the charm.
Not quite the same, but my wife bought me one of those silicon rings for $35 because I was finding the metal one from our actual wedding to be too uncomfortable.
Love it and only thing I’m annoyed about now is how much I spent on the original ring vs this awesome cheap ring.