Almost everything in Tavi Gevinson’s one-bedroom Brooklyn apartment has a story. “That’s really special,” the 21-year-old repeats often as I point something out or pick it up. I ask, for instance, about the fleece blanket splayed across her bed. Here’s how its story goes: she printed a customizable blanket from Walmart. You know, the kind that often veers into cheesy photo gift territory. This design, however, was drawn by her friend, artist and photographer Petra Collins, whose collaborations have included Gucci and Fenty. Casual.