Using a productivity planner can be beneficial for several reasons. It helps individuals prioritize tasks, set clear goals, and create a structured plan to accomplish them. By organizing and scheduling activities, a productivity planner enables better time management and reduces the likelihood of procrastination. It also provides a visual overview of progress, which helps track achievements and stay motivated. Ultimately, a productivity planner promotes focus, efficiency, and effective goal management, leading to increased productivity and a sense of accomplishment.