FRESH OFF a 14-hour flight from New York, I arrived in Tokyo in a jet-lagged brain fog. I found a surprise in my hotel room that night—a toilet that illuminated itself and had a warm seat.
But then came the hard part: flushing. The toilet was outfitted with buttons next to the seat, offering myriad functions. Luckily, there were pictographs, like tiny cartoons. I discovered the warm-water bidet spray.