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.
Steve stayed late that night, devouring the chapters. He realized he had violated the "Krug’s First Law of Usability." He had built a puzzle, not a tool. Don’t Make Me Think, Revisited: A Common Sense ...
The next morning, Steve started "Revisiting" his design with a common-sense lens:
He made the "Checkout" button large, green, and exactly where a thumb expects it to be. A week later, they ran a user test
He chopped his "Welcome to the Future of Freshness" intro down to a simple search bar.
"Read this," she said. "The user's brain is like a battery. Every time they have to wonder 'Can I click this?' or 'Where is the home button?', you’re draining that battery. By the time they find the milk, they’re too tired to buy it." That was the highest compliment he could ever receive
He imagined a user being blindfolded, spun around, and dropped onto a random page of his app. He realized they’d have no idea where they were. He added clear breadcrumbs and a persistent "Home" icon.