There are a couple I have in mind. Like many techies, I am a huge fan of RSS for content distribution and XMPP for federated communication.
The really niche one I like is S-expressions as a data format and configuration in place of json, yaml, toml, etc.
I am a big fan of Plaintext formats, although I wish markdown had a few more features like tables.
For traffic Celsius is more intuitive since temps approaching zero means slippery roads.
You’re long passed that with Fahrenheit. And on a scale from 0 very cold to 100 very hot, 32 doesn’t seem that cold. Until you see the snow outside.