I got some Tech Armor screen protectors off of Amazon on that actually feel pretty darn good. I tried going naked, but that lasted for all of 2 minutes. I just couldn't bear my screen getting scratched up. The glass is pretty strong, but many scratches are really on that oleophobic coating and it's not as if I have some of that coating just sitting around the house.
So as a compromise, I just go with the Tech Armors on the screen and then a really thin case like the
Caudabe Veil. Retains basically the same look and feel, but at least protects from scratches.