@amye @vathpela @mathowie FWIW, this was at the Marriott Lake Union (Seattle) in 2018. I'm sure I wasn't the first to have the idea, but it was original in the sense that I was unaware of precedents when I thought of it. After I posted on Xitter, it got into a bunch of "life hack" listicles, almost always using my picture to remove any doubt about where they got it. I'm probably better known for that than for anything I ever did professionally.