The grand-prize winner will receive $10,000 in cash. 255 instant winners will receive prizes like Hefty BlackOut Prize Packages, $75, $50, or $25 cash, or Good Cook Prize Packages.
Entry into Challenge Butter's 100 Years 100 Days of Winners Sweepstakes is open to US residents above the age of 18. Enter up to three times daily through September 23, 2011.
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