If you use Notes all the time then you know you can quickly become inundated with them and have a hard time finding important ones. You can make your Notes "sticky," like a post on a message thread that stays at the top, by "pinning" it. Open up your list of notes and simply swipe right on a note until you see a pin icon appear. Tap on it to pin the note to the top. Do the same thing to a pinned note to unpin it.
There are many ways to quickly access the Notes app. iPad owners with an Apple Pencil can simply touch the pencil to their screen to create a new note. While iPhone and iPod touch users don't have access to this trick, other options make it easy to write notes. iOS can even be configured to allow Notes access from the lock screen.
Yes you can use Face ID to open locked Notes on iPhone X. Head to Settings -> Notes -> Password and toggle it on.
iOS 11 has greatly improved the Notes app with the addition of lines and grids, the ability to insert tables, new swipe options and the ability to scan documents, among others. The scanning feature has been long awaited and should replace third-party scanner apps in the near future. It is simple to use and integrates the scans right into your notes. Here's how to scan a document with the Notes app on your iPhone or iPad: