The first stickers for sleeping on the train.
What is it like to live in the city that never sleeps? Endless fun and… clearly lack of sleep. Catching a nap on the train could be a great way to compensate for it, but there is also the risk of missing the stop. So I made “Please wake me up” stickers with a blank space where you can write the stop you want to be woken up at. And then took a train.
The idea may not only be limited to stickers.