“Don’t wear makeup on the plane, or if you do, take wet wipes so you can clean your face. Make sure you have pajama bottoms and a hoodie to change into. Take your own headphones—I always forget them. Download episodes of a TV series to watch—I always forget to do that. Take a really good book with you—I always forget to do that. Have some cashmere socks to put on—I never do that, but you should. One red lipstick and a pair of sunglasses is something I do remember, because that’s good [when you] get off the plane; you can pretend you’re fancy.” ”