Minnie’s checklist for the living room seating: streamlined, white, slipcovered (see: sand), and deep enough to curl up on. “I always feel like you want to be able to tuck your legs under you without your knees falling off the edge of the sofa,” she says. “To me that’s the mark of a great, comfortable family-living-space sofa.” The striped rug and the bathing-suit artwork are vintage, the table lamps are by Ralph Lauren Home, and the window treatments are by The Shade Store.