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Costco's top-selling product: Toilet paper
CNBC's Carl Quintanilla reports on Costco's best-selling product and the research behind the warehouse giant's marketing techniques.
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Costco's top-selling product: Toilet paper
CNBC's Carl Quintanilla reports on Costco's best-selling product and the research behind the warehouse giant's marketing techniques.
Date: 4/26/12
Views: 16332
Video by:  CNBC
 
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