What are some time management tools that can be used to stay organized?

Two time management tools that can be used to stay organized are a desk calendar and the reminder application on smart phones. A desk calendar helps a person to stay organized because they have a tangible object to look at that is customized to their schedule. A more micro level time management tool is to use a personal smart phone to program in each day of your life. The application will set reminders that will keep a person on task every single day.