It's cold outside. Why are there women with nothing but fake tan and bruises on their legs? The only leg covering worth considering is either some Hansel from Basel tights or my personal choice, Falke Softmerino tights in charcoal. They're thin, but warm, but not itchy or boiling hot warm. And they're very soft, as the name suggests.
I'm not drinking Cava; my teeth will fall out. Far better to warm up with a nice Scotch. I favour Caol Ila but am not too fussy. In the morning you'll need an Hermes Pendulette travel clock by your side because the Scotch will have knocked you out cold and you'll be late otherwise.
Make up: loads of La Roche Posay moisturiser, Carmex lip balm and Laura Mercier eye pencil. Fingernails: NO glitter, shimmer or metallic. Opi Matte Russian Navy is as festive as I'm getting.
The only way I'll be getting away with any kind of flimsy party dress is by pairing it with a chunky cardigan and boots.