I found the following list or a version of it while looking for information on unity.  This advice list of eight suggestions will help in marriage and any relationship.

1. No matter how you feel be courteous.
2. Do not interrupt each other.
3. Value each other.
4. Share the work load (housework, etc.)
5. Spend time together.
6. Work harder for each other (in your marriage) than you do for your career.
7. Accept your differences and celebrate them.
8. Express love daily in concrete ways.

Have a great week.

Scott