Add that to the fact my iPhone is capable of sending me reminders both based on time and place, and I have a constant companion which keeps me on track. I carry it everywhere with me and it is always accessible to me no matter where I am. For me, my iPhone is the best place for creating a task management system.
It doesn’t matter whatever your preferences are, what matters is that you get the job done. Many people like to maintain a task journal, many prefer physical calendars, and many prefer task manager applications. Managing tasks and different projects can be a chore if you have not created a task management system that not only keeps you on track but also reminds you when your tasks are due.