A good tool for reminding staff when certain things need to be done is called a tickler file

• A. Calendar
• B. Appointment book
• C. Filing cabinet
• D. Tickler file

Answer: (D)

A tickler file works as a date-based reminder system that prompts action on specific days. In practice, you have folders organized by date (often days or months), and you place items in the slot corresponding to when you need to act on them. On that date, the item is opened, reminding staff to complete the task. This setup keeps tasks from slipping through the cracks and supports timely follow-ups, renewals, and deadlines.

A calendar or appointment book is primarily for scheduling events and appointments, not for triggering a task-based reminder system as reliably as a tickler file. A filing cabinet is simply for storage and retrieval of documents, not for prompting action on a future date. So the tickler file is the best fit for reminding staff when things need to be done.