Three Checking Account System for Couples

For young couples who move in together, finances quickly become the primary source of argument due to poor planning, lack of effective communication, and different spending habits. The reality of the matter is no one is going to change their spending habits until they're ready. Attempting to expedite that process is just welcoming confrontation. Live and enjoy. Life shouldn't be spent wasted on futile arguments, and simple communication and proper planning can come to your aid. Open three checking accounts, one joint account for paying the combined expenses (those expenses should be specified and agreed upon ahead of time) and an individual account for each person. A predetermined amount should be deposited into the joint account on payday. Remaining money can be used freely after living expenses are met.

Source: Frugal Living for Dummies