Matt Stopera had his iPhone stolen last February from his favorite bar in New York City. Like most of us, he was upset, but not overly so. Matt got a new phone and went about his life.

A year later, odd pictures of a Chinese man standing in front of an orange tree started appearing on his new iPhone, via iCloud.

Unlike most of us, Matt is a blogger on Buzzfeed. He wrote up a quick post on the site about the photos appearing on his iOS device, and got some attention for it. What happened next is nothing short of amazing.

I’m guessing you take a lot of photos with your iPhone or iPad, right? I know I do. After taking them all, or saving them from web pages or text messages, they tend to add up. But how do you know how much space they’re taking up, specifically, on your iOS device?

Here’s the short and simple way to figure that out, plus an extra tip to boot.