Are your tired of losing track of your events and plans because you have so much going on? 2-year planners are a wonderful option if you find yourself in this predicament. 3 reasons you need a 2-year planner are (1) two year planners keep all of your important life events tidy and in one place (2) two year planners provide an excellent resource for important documenting such as income tax information and (3) two year planners don't require you to shift planners as soon as the year ends (as opposed to annual planners).