Hidden gems in WP8.1

I've stared a thread on this before, which unfortunately turned into a rant thread about what's wrong with WP8.1.

So let's make this thread just about the most hidden unknown little features you have found. Let us know!

I'll start with this:

  • In the volume menu, tapping on the icons on the left side (next to the sliders) will mute ringtone/notifications and media/apps, respectively. So you don't need to hold the volume down button to mute your phone.
  • You can capitalize a word by selecting it and tapping the shift key (tap repeatedly to cycle through lowercase, first letter capital, and all capital.