Same here, and also my IP5..I can never get the things on, and bith my IP4, 4S and iPads 1.2 and 3 are happily in cases without screen protectors..I just wipe the screens with a micro-fibre cloth.Nope. Been using it for 2 years now with no protector save for an Apple case. Screen is mint.
Do yourself a huge favor, avoid a screen protector.My iPad 2 should be arriving tomorrow and it's my first tablet. I've had one on my 4s since I got it months ago but I don't really think I need it.