As an 'unbelieving' husband of a JW myself, I can certainly relate. My daughter is 3 and I wonder what life is going to be like for her. Her life is certainly has a type of 'motley crew' of people in it. When I take her to church, the people there are so laid back and easy-going that the pastor sometimes wears jeans on the stage when delivering his sermons. Some of the people attend in shorts and only a handful get dressed up the way the witnesses do. I myself wear khakis and a polo shirt to church but I also where these to the hall if I go with my wife. I only dress up in a suit on assemblies and the memorial (but I still have 'please pass the jelly moments') that is when I actually go.
My sister-in-law lives with us and she too is a born in but she lives a very 'worldly' lifestyle (even by most people's standards) as she is involved with people who have questionable pasts and practices (felons, people into drugs, etc). Yet, she still believes the WT beliefs so I suspect that once she straightens her life out, she will go running back to the society.
I guess I am kind of lucky as my wife is unbaptized and unsure of whether she really wants the witness life for herself. She seems to enjoys the holidays but swears that she does not want to celebrate them for fear of displeasing God (and being destroyed by Him). It took me a few months to reconcile some of these things myself as I got caught up in the teachings for years and was starting to accept them. My wife also likes signing up our daughter in sports and has 'worldly' friends. Plus she goes to college and works as a teacher where they instruct people to always 'think inclusively.' This is a far cry from the exclusive thinking of the witnesses.
The people on this message board have offered good advice so I will only add that no matter what, love your wife and children. I think by displaying this type of love, you will win them over without really saying a word. (Hey, isn't that a WT teaching?)