laminate

i want to buy and laminate my nokia 5235 will the lamination will cause damage to the screen?? will it reduce the life of phone? will it reduce its touch response?:-?:???::?

I have bought a Nokia 6300 and by mistake one of my friend has removed the transparent sticker from the screen and as I think It only comes with a new handset. Now how can I protect its screen from scratches. As I know I can use a plastic cover or laminate the cell but is there any other way...