How do you prefer to take notes when reading a new real estate book?

I finished reading the other night and I sat there wondering what methods people use to take notes when they are reading a book. 

For instance, do you:

• ...highlight/underline snippets you think are important and then combine all those notes in a single word document(or notebook) to be reviewed later?
• ...dog ear a page with important info and then come back and review once you've finished the chapter?
• ...create a word document and add to the document while you're reading?
• ...just read and simply remember what you have read?

I'm always curious what other people have found success with so I thought I would reach out to other members to see if there is any consensus. Also, I understand a lot of people probably prefer audio books so if you have a preferred comprehension method for that type of "reading" I would love to hear that as well!

Whatever your method, I want to hear what you've had success with!