Wow, it's crazy how many little things add up like that!

That "built-in bike lock holster" idea is great. I read somewhere you should group sketches by the problem they solve, like "keeping stuff safe while moving" versus "staying warm in changeable weather.

That 40% figure is a real eye-opener. What specific user errors did the article mention, like people forgetting their codes or not understanding how to cancel a test? Knowing the exact problems would help target the training better.