Hint: Don't place your phone in the same pocket as your keys. Just a thought.
I can't confirm that I actually have. Pulling the phone out of my pocket so many times a day I don't always pay attention to which pocket my keys are in and which pocket my phone goes in. When I replace this phone (i'm sure something will go wrong with it and i'll have to get a refurb from sprint) and the screen is pristine again, I'll most likely go back to using a phantom skinz.
