Jennifer Fink of Mayville, Wisconsin, a freelance writer specializing in parenting and health, and a frequent visitor to her local library, recognizes a bargain when she sees one. "For an annual cost of about $34 a person ... (according to Department of Public Instruction data), libraries provide unlimited access to a wealth of knowledge." In this month devoted to national library card sign-up promotions, read about the value one avid library user places on "the Smartest Card" in her wallet.