Pretty much every time I check my Instagram feed, there’s an image from somebody shopping. It’s become "a thing" to post selfies from dressing rooms (you shouldn’t do it) and share pieces you’re considering buying—all through a well-chosen filter. Since this is clearly not going away, we decided to dive a little deeper and find the most popular spots to share pics. Our methods? We looked at the city’s most popular stores on Foursquare, cross-referenced the number of shared pictures and put it all through the flux capacitor. Science!