As you do more work on your family tree, and you get more data, you may need to change how you are working on your tree.
At this point, if you are not already using family tree software, you really should look into getting a program, as the software can keep track of everything for you so you do not have to try and remember it all, or have multiple notebooks of details.
With the simple click of a
mouse, you can check all the details of a person or many other details that may not be as easy to keep track of or to check on a written family tree.