word choice - Todo list or to-do list - English Language Usage . . . 2 A task that has been noted as one that must be completed, especially on a list My to-do list has been growing longer every day And: Noun todo (plural todos) (US) A task yet to be done; an item on a to-do list You can use whichever you want, but be consistent
How to punctuate lists that are nested to three levels? When commas appear inside the items of a list, or when lists appear inside other lists, I often see semi-colons used, e g : The park has: some bears; many deers, which are quite friendly, like to eat camp food, and watch visitors; and other animals, most of which live in the trees