BOGO!

Buy one get one free sundaes from Ben and Jerry's today: http://benjerry.com/scoop-shops/feature/sundaes-on-mondays/

Same thing from Dairy Queen: http://www.blizzardfanclub.com/join/

...and Quizno's sandwiches: http://www.quiznos.com/subsandwiches/1354t189dm.html

And smoothies from Jamba Juice: http://www.summerblissisback.com/eb3/sbbg.html