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.
What do I care about water? I’m not dressing water for the weather, I’m dressing me.
Are you not made primarily of water?
Do people actually look at the temperature to deterimne how to dress? For me a calendar is far more useful. And i can stick my head out the door to confirm if i need an extra layer…