Opening a new file for notes and keeping it open without saving. I will just add things to it until it's HUGE. Then i have to go through it...

I know the feeling :)) I take notes using ( and done blame me here , feel free to suggest something better ) OneNote and if I save at the end of the day , I end up with a giant ass file. If I don't and I have updates incoming...well autosave isn't working so...bye bye loads of stuff...

I used one note. But i didn't like that it's syncing into microsoft all the time. Currently i do work notes in my own space in our confluence instance and private notes in the text editor which....didn't work out. So now all my notes are done in the text editor.

Boostnote.io ?