What Who What Wear Co-Founder Katherine Power Can’t Live Without

I am a side sleeper, and this pillow is supposed to save my face from developing deep creases in my eyes and cheeks. I’ve been using it for several years and have become addicted to the additional support it gives my head in addition to a regular pillow, so much so that I take it with me when I travel, which is much more convenient (and socially acceptable) than traveling with a full-size pillow at my age.

I am obsessed with these individual matcha packets. Every morning, I either make a smoothie with this powder (along with half a banana, a half-cup of spinach, vanilla protein powder, ice, and hemp milk), or I make a matcha latte, using our Nespresso milk foamer. They give me the jolt of energy that I need since I don’t drink coffee.

I’ve used many brands over the years, but in recent years I’ve been partial to Glossier’s Balm Dotcom (I like coconut), Lucas Papaw ointment, and classic Blistex Lip Medex, which I keep at my bedside. I’ve heard that overuse of lip balm leads to some sort of an addiction, which I completely believe because despite drinking a ton of water each day, I can’t seem to keep my lips hydrated enough.

After reading many articles on Byrdie about the benefits of face oil (which sounds so counterintuitive by the way, especially for someone slightly acne-prone), I tried this one from my friend Jessica Alba. It’s the one beauty product that I am actually OBSESSED with. It makes my skin so soft, and smells like I’ve just left my favorite hotel spa after a facial. I use it at night before bed, though I think it can be worn in the day to give your skin a natural glow.

I wear Céline sunglasses almost exclusively, for no other reason than they fit me very well and the styles usually suit my face. My clothing is pretty classic, so to freshen up my look, I add some of-the-moment sunglasses. I’ll usually buy about two new pairs a season, wear them to death, and then swap them out.

These loafers are my go-to travel shoes and have been for years. I wear high heels Monday through Friday, but when I want to look comfortable and professional, these are perfect. The more you wear them, the softer they become.

I drink a lot of water, about four liters per day. My favorite water is from Mountain Valley Spring, which I have delivered to my house and my office. Anyone who spends time with me is used to seeing this bright-green glass bottle. I’m trying to cut down on my use of disposable water bottles, so I’ll either refill one of these half-liter glass bottles every day, or put my Mountain Valley Spring Water in a spill-proof reusable water bottle.

Another one of my calling cards is this refillable and reusable notebook from Hermès. I have a gray one and it goes with me everywhere. I handwrite my to-do items, both the urgent and the important, which is so old-fashioned for a tech/media CEO, but it helps me remember and ingrains the details in my head. It’s an investment for sure, but unlike other notebooks, you can snap in a refill and use the leather cover forever.