UPDATE: Read this article about this coupon: http://couponsinthenews.com/2013/01/22/best-buy-bonanza-goes-bust
Here is a NICE coupon for $50 off a $100 purchase at Best Buy when you use your MasterCard.
**There are some exclusions to the coupon however so make sure you read the fine print
To qualify for the discount, MasterCard must be used on a purchase of $100 or greater. Coupon excludes the following: © 2013 BBY Solutions, Inc. All rights reserved. Home Theater: Bose® audio products; Polk Audio; Denon; Boston Acoustics; select Samsung home audio, TVs, Blu-ray DVD players; Sony home audio & headphones, TVs & 3D glasses, Blu-ray players, DVD players & set top boxes; Magnolia Products: Samsung TVs and Blu-ray players, Sony TVs, Blu-ray players and projectors, Sharp 90” TVs, Epson projectors, URC, Sennheiser, Sonance, Bowers & Wilkins, MartinLogan,
McIntosh, Oppo and SpeakerCraft Audio and special order merchandise; Portable Electronics: Apple® iPods and Bose products; Digital Imaging: Sony camcorders, digital cameras, NEX cameras, DSLR cameras, lenses & flashes; Nikon DSLR & compact system cameras, lenses & flashes & P510; GoPro cameras; Phones: no-contract phones, broadband and airtime cards on all carriers, no contract airtime cards; gaming hardware; Pacific Sales products; Geek Squad®: C.O.D. Geek Squad services. Not valid on any BestBuy.com order, including store pickup. Best Buy employees are not eligible for this promotion. No dealers. No copies. No cash back. No cash value. Coupon must be presented at time of purchase.