Related Clues:

• It might have the heading 'Re:'
• Supervisor's note
• In-box note, perhaps
• Short written message
• In brief, a note of events
• A brief record of events
• Inter-office note
• A short note
• One may be written on the type of pad named for it
• Quick reminder
• It takes me only a jiffy to write a note
• Possible cause of your headache needing doctor's note
• It will remind me to go to the doctor
• Note setter's modus operandi
• Work product for a Supreme Court clerk