Be reminded when you arrive at or leave a location: Click Add Location, then choose a suggested location, or start typing the name of a location and choose from the suggestions. See Add a location to a reminder.
Be reminded when messaging a person: Select the When Messaging a Person checkbox, click Add Contact, then choose a person.
Change the priority: Place the pointer over the priority field, click the pop-up menu, then choose an option. Exclamation marks appear in the reminder list to indicate priority: one for low, two for medium, and three for high.
Change the list: Place the pointer over the list field, click the pop-up menu, then choose a list.
Add a URL: Click the URL field, and type a web address.
Add images: Click Add Image, choose Photos, select one or more images, then drag the images to the reminder. If you have your iPhone or iPad nearby, you can choose to take a photo, scan a document, or add a sketch.
Tip: To easily create location reminders for addresses you visit frequently—like work or home—add those addresses to your card in Contacts. Then, when you set a location reminder, the suggested list of locations includes addresses from your card.