You have a bunch of files to print. You don't want to send them one by one to the printer. A better way is to use Apple's Automator and create a workflow that will combine all the PDF files into one file which you can send to the printer one time. Here's how to do that.
Google's 2-step verification process is great for protecting your Gmail account and, most likely, a lot of other accounts you have linked to your Gmail account. However, there is a very important second step dealing with Google's Application Specific Password. This tutorial will show you how to configure your iPhone and the Apple Mail client to use the ASP.