Frugality. That's been the buzzword of the Great Recession. Sliding home values, stumbling stock portfolios and a shaky job market brought with them a consciousness about spending that many of us misplaced during years of consumer overindulgence. Americans responded to the crisis by buying less, clipping coupons more and increasing savings to 4.8 percent of disposable income in December, up from near zero before the recession. In the past year, blogs about frugality went viral. Everyone from Oprah to President Obama joined the frugality parade. Now a new term is marching through the blogosphere: Frugality fatigue. But...