Related Clues:

• FACE or “All cows eat grass” as used in musical education, for example
• String around the finger, e.g
• "Super heroes must eat oats" for the Great Lakes, e.g
• Memory device like 'How I wish I could calculate pi,' e.g
• A device to aid memory
• Memory aid means not every memo or note is copied
• Note childcare person’s souvenir
• Reminder for musician on vacation on irregular income