I always have to turn up at work but all kids are welcome so DD comes with me while DH goes for a wander and coffee in town (only 5 mins away). We meet up after an hour or 2, have coffee and a wander together to soak up the atmosphere, before we head home. This is a relaxing time - we make sure that we either have everything we need, or there is 1 small thing that is easily got - no long lists to get in a panic and facing huge queues everywhere!!
We try to get a nice walk in if weather is fine - sometimes we go to the large park in the city with lots of deer, a slight diversion on our route home. Other times just to local park or pier, and let DD into the playground there too to run off some excess energy
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DD and I bake for Santa in the afternoon - depending on energy levels I take pre-frozen dough from freezer and slice off rounds. Or we bake from scratch. I always keep a half roll of dough in freezer at this time of year to allow that flexibility. If I have loads of time and energy, I might make mince pies. IF!!
DD might have a few things left to wrap. (I leave mine until later, unless we are quite relaxed).
We might have a board game together. I usually end up organising stuff for Christmas Day food as well though, so DH and DD might play on dining table and chat as I peel potatoes. DH makes the stuffing.
Dinner last year was a smorgasbord/tapas kind of thing - loads of bits and pieces of cold things (cured and cooked meats, smoked salmon, squid, prawns, pate, cheese, cherry tomatoes, tapenade, french bread, crackers) and help yourselves.
Light the Christmas candle as it gets dusky.
We have new PJs for the whole family and organise ourselves for a movie in the evening (either tv or dvd), before a Christmassy bath (lush bath bomb), "Snowman soup" (hot white choc with marshmallows) and new pjs. Leave out carrot, milk and results of baking, beside stocking. Read "Twas the night before Christmas" for the first time (lots of Christmas stories here, but that book only gets read on Christmas Eve for the 1st time every year).
We do look at the lights locally, but usually on a night the week before Christmas rather than Christmas Eve as there's too much else going on by that point.