Not your average big-box store:
Last Friday, President Obama visited a Walmart in Mountain View, California, that's making big changes to the way it uses energy.
"A few years ago, you decided to put solar panels on the roof of the store," he explained. "You replaced some traditional light bulbs with LEDs. You made refrigerator cases more efficient. And you even put in a charging station for electric vehicles."
Find out how energy-efficient practices are helping the store save money -- and creating jobs in the process.
President Barack Obama walks through the aisles at Walmart prior to his remarks on energy efficiency in Mountain View, Calif., May 9, 2014. (Official White House Photo by Pete Souza)