Creative teaching and learning

I like to learn something new about tools I am already using. When you use some tool every day, you think you know it  well. However, we often use only some features while being unaware about many other potentially helpful capabilities.  From this post I tried 'Table of contents' and now using it regularly in long documents (e.g. my thesis chapters). I also tried Kaizena, a great easy-to-use add-on to provide audio feedback on students work.