Project Fi intelligently shifts between multiple networks. Project Fi automatically connects you to the best available signal, whether that's Wi-Fi or one of our three 4G LTE partner networks.
You can fill out the passport application online, print it out and then bring it (along with the additional required documents) to a relevant post office. This should save you and the post office time. You may, of course, still receive and fill out the application at the post office too. let them do the rest.
One cheap way to get passport photos is online. I know an online passport photo business that even prints formatted passport photos for any country at Walmarts in the Canada. However as they use a digital photo taken by you, they will not stamp on the back of the photos.