What is the difference between archiving and deleting a note?

Archiving clears a note from your list and keeps it for the day you need it again; deleting removes it for good.

Archive takes the note out of your list. Turn on the Archived filter to see it, open it and click Unarchive to bring it back. Delete is permanent and cannot be undone, so archive anything you might want next season.

See Organize your notes with tags, pins and archives.