I know I should have a screen protector, but I never got one and I notice I have a few scratches on the surface now. With the gorilla glass is this such a rare issue that I should be fine as long as I am careful. I hate screen protectors.
(especially metals).
Or sand. A single grain in your pocket or purse can do a ton of damage to any screen (gorilla glass, or not).
I bought a Zagg a few weeks back and have removed it several times trying to get it right, but I am amazed at how good the screen looks underneath compared to the first EVO LTE I had replaced with no screen protector everytime I take it off. They are expensive but I am now a believer.