I am using the Zettelkasten method to take notes. By far, it is the most effective method of note-taking. I admire the design behind it and the flow of ideas that it creates.
Zettelkasten is mainly a way to link notes between each other, like a wiki, creating connections between your notes. The biggest upside to me is that I can just start writing instead of having to think about where a certain note should be. Categorizing notes is very optional and more often than not, creating connections between notes is more important, and that’s great!
If you have not tried it yet, you definitely should; it’s an amazing note-taking system.
More information on Zettelkasten can be found here.