What are some useful skills or hobbies that anyone can learn for free?

Gruntyfish@lemmy.world to Asklemmy@lemmy.ml – 110 points –
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This barely qualifies as a hobby, but at some point I decided to learn how to count in binary on my fingers. It's handy if you need to hold a number in your head for a bit and can't write things down, or to count past 10 visually on your fingers for somebody. There are probably YouTube videos on it. I literally can't remember where I learned, but I practiced a lot when bored in church. It's relatively non-disruptive and practicing can eat a decent amount of time.

0 materials. Just takes time. Literally free.

I practiced a lot when bored in church

I've heard church frowns upon non-binary people. But I had no idea they convert people to binary counting.

I did the same when Masahiro Sakurai explained how to do so when revealing Byleth for Smash Bros. Ultimate. It's come in handy a few times when needing to count things out, and honestly can be a fun exercise for dexterity to just count to 31 on each hand.