Christmas Eve here too I think. And obviously Christmas morning. But Christmas Eve is all about the magic and anticipation, rushing, chaos, and fun. Oh I can't wait!
I usually run around like a headless chicken on Christmas Eve, so I've promised myself I will be organised this year and spent Christmas Eve doing fun things like making cookies, crafts, movies etc. All the cleaning will be done on 23rd, with just a quick tidy up the next day.
DH does the dinner prep, but he enjoys doing that with a glass (or maybe bottle!) of wine.