Challenge: Share your favorite lightning feature!
Hands down my favorite feature in Lightning Experience is the App Builder. (Followed closely by the new modern dashboards.)
Building on a known infrastructure with reusable components (out-of-the-box components & custom), the App builder allows #AwesomeAdmins to do so much more is less time.
With great power comes great responsibility. Gather the business need/customer stories. Take a step back and design solutions to accommodate as many business units as possible. Build today with an eye on the future.