How you spend, how you save, and how you share and manage the household income can influence a lot more than just paying the bills. Money can help you and your partner pay for the things that make your life nice. Unfortunately, it can also cause some serious clashes. In a survey by Ally Bank, 36 percent of couples reported that money was the biggest source of stress in their relationship. Luckily, it is possible for partners to come together. Here are ways couples have a more harmonious financial partnership.