To set up reminders:

1. Open the Remember The Milk web app.
2. Click on the cog icon at the top right of the page.
3. Click on Account Settings.
4. Click in to the Contact Preferences section.
5. Click on 'Add details'.
6. Select the reminder method from the drop-down.

For Email Reminders

1. Enter your email address in the text box provided.
2. Click the 'Send verification code' button.
3. Enter the verification code sent to you by email and click the 'Done!' button.

For Instant Messenger Reminders

1. Enter the username that you use to connect to your instant messenger network in the text box provided.
2. Click the 'Send verification code' button.
3. Enter the verification code sent to you by instant message and click the 'Done!' button.

For Mobile (SMS) Reminders

1. Select your country and carrier from the drop-down.
2. Enter your phone number in the text box provided.
3. Click the 'Send verification code' button.
4. Enter the verification code sent to you by SMS and click the 'Done!' button.

For Desktop Notifications Reminders

1. Enable 'Desktop Notifications' in the list of reminder methods.
2. Ensure that the web app remains open in an app or a browser window.

Note: If you don't see Desktop Notifications listed, be sure you're using a supported browser (at least Chrome 20 or Safari 6).

For Mobile App Notifications Reminders

Mobile app reminder notifications are enabled through the mobile apps, either by enabling them in the Android app or by logging in to the iPhone app or iPad app.

The mobile apps will then use the settings you've chosen from the web/desktop app.