In 2012, Casey Neistat made a video to promote the Nike Fuelband. It's filled with awesome footage and a great soundtrack: Fischerspooner - Emerge (Junkie XL Remix).
There's this one line that I can't get out of my head ever since: "Always the stairs, never the escalator".
Whenever I can, I'll take the stairs instead of an elevator or escalator. My current workplace is on the 5th floor and I'll happily take (at least) 100 steps up and 100 steps down each day.
So thank you Casey Neistat for teaching me a healthy habit!