Note-taking apps are like Baskin Robbin's am I right? 31 flavors and everyone has a different one.
What do I personally use? Well for CTF's I use CherryTree and a template, and you can grab CherryTree from giuspen.com the creators site.
The template I use can be viewed or downloaded from GitHub.
What I like about it? As a hierarchical note-taking application, it's featuring rich with text and syntax highlighting, and you can store data in a single xml or sqlite file. It also has encrypted file storage out of the box, with password-protected files. Also, you can export to PDF, for easy sharing and or report generation.
So what's in my template?
Originally I found the template from this fellow hacker OSCP Templates, I just modified it for Hackthebox. They also have a lot of great information around the OSCP, recommend to check out their site as well.
What do you use? Jump in our Discord and let us know!