Favorite Additions to WP 8.1

Mine HAS to be the updated browser. More fluid, and more feature rich. Loving the reading mode, I can't state that enough. Also loved the fact that as soon as I downloaded the developer preview, it synced the tabs I was using on my surface immediately. And when I was going through my phone's browser to visit websites, I also noticed that on my surface and desktop, there was a new option right under tabs that says "windows phone". I really like this implementation because instead of digging through settings to see WP tabs, or surface tabs, it all shows up under tabs under different sections. That's AWESOME. What are some of your favorite additions?