United Airlines announced it will collect spare foreign change from passengers on flights between Chicago and London, then donate the money to the U.S. Committee for UNICEF. Why not? Most banks won't convert foreign coins, and just $2 worth can provide enough Vitamin A to protect 60 toddlers from blindness. Meanwhile, Northwest Airlines will auction off vacation packages on Sept. 27 at Sotheby's in New York to benefit Habitat for Humanity International. The catch: You must bid with Northwest frequent-flier miles that you already possess or buy for 5 cents apiece.
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