Do not buy W a holiday gift or even broach the subject with her.

You and your W should each be responsible as individuals for purchasing gifts for your children.

Using 401K money for holiday gifts - not a good idea.

I would not invite your W for Christmas Eve dinner.

One goal I would personally like to see you set and achieve is how to find and use resources in all aspects of your life on your own without asking your W first.

Also, think about this.. when you are trying to make a solid and sound decision (EX: removing your W from the cell account) you take your time and evaluate in a very methodical manner. That is good BUT you need to apply that same methodology all the time when dealing with your W. When you think you have to call her and ask her a question, stop, evaluate, use your resources and be 110% sure it is actually something you need her input on. As I see it there is very little you would really need her assistance or input on.

Do not leave anything opened ended with her. When you do something either state it as "I have decided" or if necessary give her two available options, both which work for you.