When many phones switched to the smaller microSIM standard, many found it easy to cut their SIM down the smaller size, either with a razor blade or a special tool. With nanoSIM making its debut on the iPhone 5, does the same process apply? The answer is yes, and here is proof. In fact, the nanoSIM is just a microSIM with no plastic around the edges. Not only will you need a sharp razor blade and a straightedge to guide you, but you'll also need some 180 grit-or-higher sandpaper to slightly reduce the thickness of the resulting nanoSIM.

And if you fear that you might one day want to go back to microSIM, you can always buy a converting adapter.