The PennySaver, an advertising newsletter that was a fixture in Southern California mailboxes for decades, is going out of business. Employees said they were told late Friday that the company was ceasing operations immediately, without warning or further explanation. “They said, ‘That’s it. We’re done. We’re closing. Everybody pack up your things and leave,'” said one employee, who asked that her name not be published because she was unauthorized by the company to talk to the news media. [Snip] On its website, OpenGate said the PennySaver is the largest direct mail shopping publication in the United States, reaching 11 million...