Exiting under-performing stores will kill two birds with one stone, moving inventory to more successful J.

FORBES: How To Save J.C. Penney: Shut Hundreds Of Stores, Say Business Professors

Also, treating malaria kills two birds with one stone--its tied to poverty so tackling the disease makes fighting poverty easier.

FORBES: Magazine Article

Asus tried to kill two birds with one stone when it created the Transformer AiO, but wound up building a giant brick.

WSJ: A PC and Tablet 'Brick' for the Price of One

Apple is trying to take down two birds with one stone, targeting both Samsung and Google and cutting straight to the heart of the latest Android operating system.

FORBES: Apple Sues Samsung In US Court

Hitachi is working with Nippon Signal and the University of Yamanachi to build a new boarding gate that hopefully kills those two security birds with one stone.

ENGADGET: Hitachi boarding gate can sniff explosives on passes, keep the transport queues flowing (video)