My suggestion on how to make that letter re-surface each month is:
- If your to-do list is digital, make reading your letter a repeating task, and put the body of the letter in the note section of the task.
- If your to-do list is paper, put the letter in your tickler file. When it re-surfaces, read it and re-file it for a month down the road.
FutureMe.org is a website I saw which accomplishes much the same purpose. You write your letter, provide the date on which you would like to see it again, and enter your e-mail address. On the appointed date, the letter arrives in your e-mail. From there, you can copy and paste the letter back into the website and select a new date.
Whatever your method, the main idea is to envision your preferred future, review that vision periodically, and “adjust the sails.” Little-by-little, your performance begins to resemble your vision.