I learned a long time ago that there's no way my brain can remember everything I need to do. I created what I call a "Yearly Task List" to help me remember what I need to get done and WHEN I need to get it done. This list gets revised each year as I add or take away responsibilities (or realize that I am missing something).

I print it out at the start of the year and actually go through the list, adding the items to my calendar. If you would like to see a copy of my list, here it is: Yearly Task List