Budgets may be tightening, but don't blame these items -- their prices have fallen as much as 88 percent. Even after weeks of worry on Wall Street, Bankrate's poll finds we are still optimistic about the economic outcome. You may think you're on top of your finances, but even the sharpest folks make these common fiscal faux pas. With the economy heading south, getting the job of your dreams is trickier than ever. These tips can help.