Do you often find yourself on the defense in discussions with your wife or children? Sometimes we spend so much time trying to defend our position that we totally miss the point that the other person is trying to get across to us. Be prepared to be open in discussions in order to hear what is being said. Criticism can be a valid and useful way to improve your own performance, or can be a veil over other deeper problems that your spouse / child has. Learn to perceive the difference. You can help the most when you can identify the root of the problem instead of just defending your own ego. Remember that pride is good - when it's in the appropriate circumstances.
Separate the distractions of work-life and home-life or you will find that you function less effectively in both. IF you find it difficult to switch off work problems, stop up the road for five minutes, or outside a park, and mentally conclude your thoughts of work for the day. Better still, spend the last part of your day at work writing down your current issues and possible solutions; it will be there the next day. You can then deal with the issues at home more refreshed.