What do you guys like for screen protectors? ... I have the 4/7" iPhone 6. Bought some very early for $7 online. Installed it only to realize it covered the front camera, even though it claims to be specifically for this phone. So that's going back. Sooo ... I was looking to just get a simply sub-$10 screen protector that fits. But now I'm reading about some of these thing pieces of glass that are more expensive, but some people rave about them. What do you like? Have you ever tried the glass ones like 'TechArmor Ballistic Glass' or 'iPhone 6 Screen Protector GLAS.tR SLIM?' Thanks in advance.