Monday, March 16, 2015 will be Dairy Queen's 75th anniversary and to celebrate this special occasion they are having free cone day where customers can get a free small ice cream cone at participating locations. It's also being done for a good cause with donations going to help benefit Children's Miracle Network Hospitals, etc.
http://www.dairyqueen.com/us-en/Promoti ... echange=1&
http://consumerist.com/2015/03/13/dairy ... -march-16/