Pearl Moss looked out her front window in Bethel Park, Pa., and was worried. A major snowstorm that pummeled the Pittsburgh area and the East Coast over the weekend had dumped nearly a foot of snow in her driveway, and there was more on the way.

“I thought, ‘What am I going to do? There’s no way I can get out there and shovel myself out,’ ” said Moss, 74, surveying the white landscape.