When the Coffee Machine Starts Tracking Your Spending
Last week I noticed my smart coffee maker had logged 3.2 € of coffee beans, 0.8 € of sugar, and 0.5 € of milk for the day. The app that came with it sent me a push notification: “You’ve spent 4.5 € on coffee today—consider a cheaper blend.” That tiny alert nudged me to switch to a bulk bag, saving…