As both a big fan and someone who is lucky enough to call paying attention to what you wear a "job," I just wanted to say: I love this tiny backpack you've been carrying around!
I did a bit of research and learned that this is the Louis Vuitton Palm Springs mini backpack. It retails for $1,910 and its size dimensions are 5.9 x 8.7 x 3.5 inches. That means that if your backpack grew to be a full square foot, it would cost approximately $13,700. If anyone deserves that kind of luxury real estate, it's you! But who's counting? Certainly not me or the dubious square-footage calculator I found by googling.
Anyway, your ability to travel so light is truly inspiring to me this holiday season. Especially as I attempt to see how many pairs of Fenty x Puma creepers I can stuff into my carry-on for the train ride home.