Owen Strachan has a very good post about financial strife that many people bring with them to marriage. Debt has a way of creating stress in a marriage and, unfortunately, it is a subject that too few are willing to consider biblically.
In our consumeristic age (now compounded with a growing "government bailout" mentality) the idea that a person should live within his means seems rather quaint. Even Christians are often influenced more by the prevailing cultural attitudes on debt than biblical teaching. Yet, as Proverbs 22:7 summarizes, "the borrower is the slave of the lender."
I ran the following clip in 2007. It is still funny. And it still communicates the kind of practical wisdom that the Bible commends and that is far from common in our day.