You probably use reminders on your iPhone all the time, but DYKT you can add attachments to a reminder so you can keep everything related to a task in one place? For example, if you are going to an appointment and need a document for it, you can add it to your reminder. 

To add an attachment, hit the camera icon on the bottom bar of the Reminders app. You can choose from your library, take a new photo, or scan a document.