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:
To add a grid or lines to your Notes, head to Settings -> Notes -> Lines and Grids. Select the background you want, then go to your Notes app and open a new note. The backgrounds are only relevant to the handwriting tool, so tap on it and your background will appear.
Whether keeping track of a packing list for a camping trip, sketching diagrams for a shed, or jotting down ideas for a book, the utility of the Notes app improves when it is synced between all of your devices. Start a rough grocery list on your Mac, finish it on your iPad while standing in front of the fridge; jot down rough ideas on your iPhone while out and about, expand on them later at the office on your Mac. This can all be achieved by syncing Notes with iCloud. Here's how to do it: