Never stop learning. I hear so many people say this, a search on Twitter shows about 4000 tweets where people have put those 3 little words out into the world, but it's one thing to tweet it and one thing to actually DO IT! Learning is not always fun, it's not always easy and it takes a certain type of person to be able to sit back in a meeting or brainstorm session (especially when you have reached the top of your game, like I have - wow, it feels arrogant and kinda cool to say that. I have reached the top of my game, woohoo!) and say to someone junior to you, "Wow, that's cool - I did not know that".
A while ago, I bought a Canon camera and I love it but I really didn't know how to use it. I know it's super powerful, because it's the same camera most professional photographers use. It has sat in my house not being used for about 5 months, until recently were I needed to take some pictures for a client at work. One of our Art Directors had the same camera as me and was taking MUCH better pictures than me, she gave me a few tips and showed me little tricks that I haven't been able to find on YouTube or any other blog I have read and re-read - it was so simple and I finally "got it"
I have been a huge Snapchat advocate since I became aware of the app about 4 years ago. I love the filters and the way in which the app curates content from around the world to make it's Snapchat stories. I have even added Croatia and Yacht Week to my list of things to do before I die because I watched a Snapchat story on Croatia and Yacht Week.