A checklist is a simple tool used to organize tasks or items that need to be completed or verified. It typically consists of a list of items, each accompanied by a checkbox that can be marked when the item is finished. Checklists are commonly used in various fields, including project management, education, and healthcare, to ensure that important steps are not overlooked. Using a checklist can enhance productivity and reduce errors by providing a clear visual guide. They can be created on paper or digitally, making them versatile for personal use, such as grocery shopping, or professional settings, like safety inspections in aviation.