Introverts, who prefer quieter, lower-stimulation environments, have trouble thriving in today's extrovert-oriented culture, says author Susan Cain. iStockphoto.com hide caption

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Tracy K. Smith poses for a portrait outside of NPR headquarters in Washington, D.C., on Friday. Mito Habe-Evans/NPR hide caption

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Weddings don't have to be extravagantly expensive to be filled with joy and fun. "Allocating your money to the places that you care the most about can be really helpful," says author Meg Keene. Kriss Russell/iStockphoto.com hide caption

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