I keep my phone in my pocket, so I have the thinnest phone cases to reduce bulk - eg no flap across the phone. If I use a plastic screen protector it always peels off at the edges from being dragged across my tight jeans pockets. Glass screen protectors stay on much better, but always end up splintering at the edges, eventually cutting me or leaving glass splinters in my hand.
Can anyone recommend a screen protector that will neither peel nor splinter?