The number of new applications for home loans rose last week. In its report today, the Mortgage Bankers Association credited lower interest rates - a '30 year fixed is now an average 5.68 percent. Many folks would prefer to patch up the place they already have. You many have a tough time finding qualified carpenters, electricians, plumbers and others to help out. The Bureau of Labor Statistics says it's going to keep getting worse - more than a million of these skilled jobs are going unfilled every year. We sent Marketplace's Lisa Napoli to find out what some are trying to do to fill a growing blue collar gap.