On Tax Day, April 15, Krispy Kreme customers can score themselves a dozen Original Glazed Doughnuts for the price of their state's sales tax.

Shake Shack: From now until April 27, foodies can get a free Black Truffle Burger, Black Truffle 'Shroom burger or Black Truffle Parmesan Fries with a purchase of at least $10.40 when they use code ...