What is something really stupid you purchased that turned out far better than expected?

https://lemmy.world/post/1400491

What is something really stupid you purchased that turned out far better than expected? - Lemmy.world

I bought a piece of 1.5 inch stiff foam to try to fix a sag in a bet. 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 burr grinder for coffee beans. I thought coffee snobs were wrong. I was wrong.
Which one did you get? I’m looking for a good one that won’t break the bank.
Picked up a manual Javapresse burr grinder that I use with an Espro P3 french press. was a reddit recommendation, as i recall.