I love protecting my iPhones and when i apply my screen protector, i cannot stand the fact that i sometimes get dust trapped underneath my screen. Hence, thats why ive been through quite a bit of screen protector in order to install a perfect one... However, when i got my iPhone 3G S, i have figure the best way to install screen protectors. You need iKlear Solution, Squeegee (i use the invisibleshield one) and of course a screen protector! here: 1) Spray iKlear Solution on the iPhone and adhesive side of the screen protector 2) Wipe down iPhone screen with Microfiber (make sure theres no dust) 3) Quickly lay down the screen protector 4) Adjust screen into perfect position and squeegee out the iKlear Solution 5) PERFECT! NOTE: leave it on for a day for the reamaining solution underneath the screen to dry!