main piece of advice: balance
You have find out what that balance is with the wife. If you do too much climbing, she might get too pissed off. If you don't climb enough, then you will probably turn into one big a-hole.
I don't go out barhopping or anything like that, becuase she understands my "time with the guys" is in da mountains. So I have had to change some of my "other extracurricular" activities so I could just focus on more climbing.
I also have two children, and I constantly thank her for looking after them when I go out. It shows my appreciation.