For those with Mastercard

Charlotte02

I have no idea if this works or not, we plan on trying it out shortly but I can't believe how good a deal this is if it's true.

http://www.freebieshark.com/2013/01/best-buy-50-off-100-purchase-when-you-use-mastercard.html

I really hope it works, we need a new router. If it doesn't I guess the most I wasted was some time driving to bestbuy.