In time management and in overall management of one's life, one must have a Capture system to capture what is needed to operate effectively. See Capture It All.
The major tool for this, used by the great masters of productivity, is the "Master Notebook", to capture everything that is not captured elsewhere.
It is a convenient way to capture things but also masterfully effective, though simple.
The fact that everything gets captured not only is good for effectivenes but it also reduces anxiety, too! See Being Organized. It is good to think "in writing", plus being able to review what you've written. Writing has one engage in better thinking. See Why Put It InWriting, which interestingly is in the Problem Solving section - it benefits one's life tremendously, yet some people don't see that and therefore do not live the level of lives that is possible from using "the methods" and "the practices" that I recommend on this site. There is always a beneficial path to follow, so please don't miss out.
USE IT FOR THESE FUNCTIONS
You can use the Master Notebook (a simple spiral bound) for multiple functions.
You simply record the date at the bottom of a page you write on, plus you can add a function name, such as:
Notes (I don't add that as I know a page not labelled otherwise must be notes).
Don't include more than one topic per page, so that you can pull out and organize
the pages in, say, a file, for later handling
Capture an idea, devise a plan, make a decision, etc., but label what it is, at the
bottom of the page.
Meeting notes is a major function, plus notes on a phone conversation
Journal (which can be referred back to by date, or the pages can be taken out and put into a journal notebook or file)
The recording of thoughts/problems, etc., is a sort of a "journal" function. This is where you can record "the left side of the page" with your thoughts/beliefs/behaviors that you are engaging in that you might want to reexamine and reformulate, using the right side of the page to provide an enlightened, self-advising, objective, wise, compassionate addressing of the issues. This is part of the Internal Conversations methods and the Beliefs Changing protocols. Since this is always with you, recording such things is easy and convenient - doing this is a vital facilitator for a vital function.
To Dos and Reminders: I put these at the back page and then go backwards, adding (and dating) a continuation of the reminder/todo list and/or a daily planning/todo list, so I can find what I need to transfer/buy, etc., easily by looking at the todo/reminder lists.
See the Rules in the sidebar.
THE SUPPLEMENTAL PIECES OF THE SYSTEM
The Master Notebook is really the Master Capture System.
The little notebook
The little pocket size notebooks are what I use when I must go somewhere where it is too awkward to have the big notebook, though I carry the master notebook wherever I can.
The instant recorder
I use my smartphone to conveniently dictate something when I am driving or otherwise can't enter it in the notebooks.
Date each page at bottom and subject (so can flip through)
In the back of the notebook and going backward in use of pages, list items you want to follow up on, with date of entry. You can refer to relevant notes by using the date of the page of the notes. Do all tickles as to when you'll follow up during your daily clearing of the to do list. Clearing refers to transferring what you need to, for followup and/or reference.
WHAT TO DO WITH IT AFTERWARD
Clear all items daily
Your daily tickle list will have the clearing of the notebook on it.
It is best, though you could do it on a less frequent basis if you choose, to take from the notebook at least weekly, those items that you want to group into a folder or notebook, so that they are more usable and retrievable (by subject, etc., rather than being left in an distinguished blob in the notebook).