I was in L.A. on Tuesday, and I had a little extra time on my way to the Burbank airport, which meant a rare treat…. lunch at the famed In-N-Out. I don’t mean to be that guy who tweets what he eats, but my lunch is pictured below. The main picture I wanted to share is a simple example of perfect mistake proofing (a.k.a. error proofing or “poka yoke“). There is a possible customer error … Continue reading Smart Error-Proofing in Fast Food: How In-N-Out Outsmarts Quiznos with Simple Design