In the States, we just celebrated Thanksgiving. Now most will be celebrating Christmas, followed by the New Year.
Typically, holidays mean a great deal of extra work for wives, much more so than for husbands. In some homes the women work like crazy while the men talk, watch sports, or otherwise do anything other than helping with some of the extra workload.
Be aware of what extra work she picks up during the holidays, and look for ways to take some of it off her. Helping her be less busy and stressed is good for her, for your family, and for your marriage.