How do you make notes without wasting time?
Prioritize any "new" information. Don't waste time writing down information that you already know -- this is useless to you and just wastes time. Focus on writing down any new information that you've never learned before -- this will give you the most value from your note-taking.
What is the best note taking method?
The outline method is one of the most intuitive and simplest ways to take notes. As the name suggests, the outline method turns notes into a hierarchy of information, providing a logical flow of content on the page and keeping it highly organized. With the outline method, you can take notes by hand or digitally.