I just scored 2 Snickers for the price of one from our vending machine.

As I stared indecisively at the selection in front of me, it suddenly noticed the advantageous positioning of the treat that satisfies. Decision made. And sure enough, I was treated to the satisfying sound of 2 candy bars falling.
This finally makes up for the time the machine refused to relenquish a bag of peanut M&M's.