Don't fight unless its worth it. Do everything together around the house. Don't make certain things her job or your job only. Take trips every few months. Never stop dating. Don't have kids for at least 2 years. Agree now on holiday splits with family. Don't have kids for 2 years.
Beat it up so bad that nobody else will ever want it.
I let my wife make the day to day decisions that only start fights when you disagree. However if its a big life decision I will put my foot down if we disagree. It seems like a nice back and forth so far.