Paper and markers are a must during a discussion. Sketching allows different ideas to materialize in front of us as we discuss product. Without sketching, everyone might end up with different conceptions of the idea. Sketching gets the idea out of your head and into everyone’s head. Again, this improves communication. Everyone is on the same page, which ultimately allows for faster iteration and a better product.
It’s not design thinking that the world needs; it’s design thinkers who continuously evolve the practice as they encounter new constraints and cultures.
When preparing to travel, lay out all your clothes and all your money. Then take half the clothes and twice the money.