I found these guidelines on a Military sight and most of them will apply to all married couples.
8 Financial Stressors Many Couples Face and How to Overcome Them
Not Agreeing on How to Handle Finances
Not Creating a Budget
Putting Off Saving for Retirement
Not Having an Emergency Savings
Taking on More Debt Than You Can Handle
Struggling with Finances on Your Own During a Deployment
While most of you will not face separation due to work, I am finding more and more families are having to live with these types of separation. Planning before hand can save both of you a lot of stress.