What's the most unexpectedly useful item you've ever bought under $20?

https://lemmy.world/post/32300942

What's the most unexpectedly useful item you've ever bought under $20? - Lemmy.World

Lemmy

A good, insulated cup. I make ice coffee every morning and a good cup doesn’t get condensation and keeps the coffee cold for hours (I drink slowly while I work)
got any recommedations?

I have a silicone cup like this that works pretty well: a.co/d/3nabYyx

I also have tumblers without a top from the brand Brumate that work amazingly, but they cost more than $20 retail. I’ve gotten them for cheaper at discount stores and on sale at their website.

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ah I was hoping for something more coffee cup shaped - thanks anyway