Buy nothing groups got me back on Facebook, but Zuckerberg is about to make me quit again

It’s a dark winter evening, and I’m about to drive 10 minutes to pick up 8 over-ripe bananas from a neighbor. As I grab my coat, my husband wonders aloud whether I have lost my marbles. “You’re driving 20 minutes to pick up decomposing bananas that would cost $1.60 at the store?” he asks. In the car, I begin to face the reality that he might be right. Over the past few months, I’d fallen into the rabbit hole of the 12,900-person strong “Buy Nothing” group in my Boston...