"Keep your courtship alive. Make time to do things together – just the two of you.
As important as it is to be with
the children as a family, you need regular weekly time alone together as a couple.
Scheduling it will let your children know that you feel that your marriage is so important that you need to nurture it. That takes commitment, planning, and scheduling.
It doesn’t need to be costly. The time together is the most important element."
~Elder Joe J. Christensen, 1995
This can something as simple as closing yourselves off in a room and wrapping presents together. Play some Christmas music. Wrap presents naked. Wrap each other in leftover Christmas wrap. Include some treats. When you're done, wrap yourselves around each other.
Here's a tip - how about having sex first? Sex alleviates tension, floods the system with endorphins (a natural feel-good drug), and oxytocin (bonding drug) that both improve mood and assist in making conversation more pleasant.
In her sexless marriage talks and writings, Michele Weiner-Davis said that many married couples report having their best conversations after sex. (Weiner-Davis 2012)