One of the unsung heroes among the built-in apps on iOS devices is Reminders. Reminders are different from calendar events. Calendars mark your appointments, while reminders tell you what you have to do.

In this short video, I'll show you how to create a new reminder list, enter a reminder, set a deadline or prioritize a reminder and show items as completed. We'll also cover deleting reminders and creating them with Siri.

As with all of our video tips, this one can be expanded to full-screen for more detail.

This article was originally published on Tuaw.