Memorize or Minimize

 Whether you're going to memorize a specific thing, or merely keep it available for easy reference by means of artificial devices, is of course up to you. Let frequency of use, importance, degree of actual interest, and so forth, guide you in deciding. But don't forget, it's very important that your external storehouse be accessible, and even in occasional command of your attention, lest you forget to remind yourself. No sense in preparing a valuable memory-minimizer, only to misplace it and its usefulness. If you use an appointment book, refer to it regularly, at regularly scheduled times; always keep reminder notes dealing with the subject in the same place.

By organizing your time to use your natural memory only for those things for which you require mental remembering, and taking care of the unnecessary-to-memorize in an efficient manner, you'll be able to cut your task in half with surprisingly little bother. By eliminating the chore of committing many little needed things to mental memory, you leave your mind more free of interference; uncluttered and clear and with more time for all those other things that you'll want to have right with you at all times.