Never change it. Once on, the phone gets sold along with it.
But this time, on my 9360, I have put a 9700 SP,since the 9360 is unavailable. Will change it, once available.
Almost never. Once on, they stay on. If I sell an old Blackberry, I'll change the screen protector. But that's the only time.
Now, to be fair, I keep my phone in a case (typically, Otterbox Commuter) and belt clip, so the screen doesn't really get any wear. My kids carry Blackberrys w/Commuter case in their purse or pockets, so the screen protectors get a bit beat up. I replace theirs when the screens start showing heavy wear. Makes the phones look new again.
Never, its still on my 8330, 9650 and PlayBook. I guess I'm OCD about my "toys" and take good care of them with or without protection. Sooooo why do I need protection......just in case
I carry my Torch in my pocket so the screen protector tends to get scratched up from time to time especially when I forget and it's in the same pocket as my keys. I just change it when I feel it needs it. Sometimes it's once a month sometimes I go three or four before changing it.
