How color-coding your notes helps you study. Using color can improve the performance of your memory. This isn’t just a throwaway observation: Research has backed it up.

You can scan QR codes with your iPad's camera to quickly navigate to web pages or apps. You can also scan documents on your iPad with the Notes app, where you can then edit and share your scanned ...

You can then make a new note from that, or copy and paste the text into an existing note. How to scan a QR code with an iPhone. Open the Camera and hold it up to the QR code.