Give her a hand
In most marriages, especially if there are young children, the woman carries more of a burden for the extra household work load during the holidays.
Along with whatever extra she has to do, she will soon have the kids out of school for a couple of weeks. They will be excited and bored at the same time, which is never a good mix!
Spend some time thinking about what you can do to help take some of the load off your wife. If you are willing to follow through, ask your gal how she would most like you to help.