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.

Ember mug. I saw James Hoffmann’s review and went, “how good could it be?”

It’s the only mug I can drink from now.

$150 for a mug!?
I am not sure about this one. $150 for the mug AND you have to install another app on your phone just to use it. If there was a way to just use the mug without the app I could see it.
My wife and I got Nextmugs, which have no app and one single button that switches between warm/hot/piping/off. I tend to drink hot coffee slowly over the course of a couple of hours, and this has been a significant quality-of-life improvement.