[MatthiasPortzel]

The app that you’re supposed to use for persistent, unnamed, always open documents is obviously Stickies. Try it out by using cmd+shift+Y in any application to add selected text to a new sticky.

(I’m kidding, I’ve never intentionally used this macOS feature.)

[fingerlocks]

I actually used this a lot back in snow leopard, but I think it’s gone now. It was actually really nice to have little persistent post-it notes floating around.

Does it still exist? I haven’t seen it or heard of it in years.