I know Angie said that basics don't count, but often my wardrobe essentials are essential across all of my capsules.
Here are my pull on black tops. I wear them for sleep, WFH, gear, weekend, daily work, formal work, and fun festive. I have them for summer, transitional, and winter.
Same with black pull on bottoms. The season and formality level change, but always essential!
Anyone else have cross all capsule essentials?