The current record low interest rates present buyers and homeowners looking to refinance an opportunity to save a lot of money over time. Watch this video by WA Homeowners, a not-for-profit clearinghouse of public information on housing, to see how shaving one percent off the mortgage interest rate can make a difference on your pocketbook. Considering that rates for 30- and 15-year fixed loans have been at historic lows, the potential savings today is even more substantial than when the video first aired in 2009.