Subscriptions aren’t new. People have been paying for regular access to things like newspapers and books for many years. But these days, it feels like everything is turning into a subscription. We see them everywhere, from TV and music services like Netflix and Spotify to food delivery and beauty product boxes. Believe it or not, the average American spends $219 a month on subscriptions. I’m not saying subscriptions aren’t useful; even I have 1–5 of them. It all started when I decided to go...