Donвђ™t Make Me Think, Revisited: A Common Sense ... Online

"That was easy," she shrugged. "I didn't even have to think about it."

A week later, they ran a user test. A grandmother, who usually struggled with tech, tapped through the app in seconds.

Steve smiled. That was the highest compliment he could ever receive.

The next morning, Steve started "Revisiting" his design with a common-sense lens: