When we got married, we decided to keep separate credit cards. It's kept us from fighting about money for over 30 years.

• My husband and I have been married for over three decades.
• We have argued over many things, but rarely over finances. 
• We mostly keep our money separate, aside from some investment funds and one joint account.

In 33 years of marriage, my husband and I have argued over politics, housework, and whose turn it is to let the dog out. But we've rarely fought about money. I attribute this to the unexpected advice my mom gave me when I got married: In addition to any joint accounts, always keep a separate credit card and bank account.