Hi, I have an iPhone 4 that I love, and I actually really love the design, but I'm not satisfied with the covers that I tried. There is someone who tried to use the phone without a cover? Only using screen/back protector(or a full body protector)? I don't want to ruin the phone, I usually put it in the pocket, bags or whatever, and i'm quite scared that some films would not be enough to protect it. In alternative I saw the slice 3 case that seems quite nice, there is something more thin?