ELI5: Explain Like I'm 5

To do list

A to-do list is a list of things that you need to do, like clean your room, do your homework or practice playing the piano. Writing down a list helps you remember what you have to do and in what order. You can write a to-do list on a piece of paper or on your computer or phone. Then, when you finish a task, you can cross it off the list to show that you're done. To-do lists are important because they help you stay organized and make sure you don't forget any important tasks.