The 'works-no-matter-what outfit formula'. What's yours?

I've been developing a formula for the days when I have no idea what body I'm going to wake up with.

Mine:
→ Top: Flowy, matte fabric (modal or Tencel crepe) ; no cling, no shine
→ Bottom: Wide-leg with a soft waistband (ideally 2-3% MAX elastane in the fabric)
→ Shoe: Something that adds length so I feel put-together even when everything feels off
→ Layer: Loose open cardigan in enzyme-washed cotton or linen.

What's your formula?