A big gripe about the iPhone has always been the lack of ports, notably USB ports, to allow for easy file transfer from device to device. Usually, printing is the end result of these file transfers. Well, who needs ports, anyway? If you have access to an Epson Wi-Fi All-In-One printer, all you need is the free PrintJinni app, and you can print straight from whichever email service you use with your iPhone. You can print any Microsoft Office attachments, as well as PDFs and JPEGs. Your phone communicates directly with the printer; it’s as simple as that, and you won’t be wanting for flash drives ever again.