What are your secrets to wedded bliss?

Agree on a fair way to divide the bills. Then keep separate bank accounts. Each person is responsible for their agreed upon share of the divided bills, their own personal bills, and spends the rest of their own hard earned money how they see fit. No fighting over where the money in the shared account went, who's money is who's, no "asking permission" and fighting if an agreement is not reached. You want something, work hard and save for it with your own money. And also - no credit cards! They are nothing but trouble! Remember, fighting over money is the biggest cause of divorce.