This Google add-on allows you to create lists and notes based on a group topic such as grocery list or errands. As you complete items you can click it and it moves it to the marked off section of that list. You can also delete an entire list when you finish with it (like Christmas shopping list). It is available on desktop, iOS, and Android. On Android phones the app is usually already installed so you can add things to the list from the computer and mark them off on your phone or vise versa.