I have a case on my iPhone 5. It has destroyed the phone! Dirt and sand gets trapped inside, the case itself looks like **** now (it's clear) ... where as the front of the phone looks mint since I keep my phone in a separate pocket. Honestly, I've dropped an iPhone 4S with a case onto the sidewalk, and the case saved it. — However, in this case, it's totally trashed the phone. ... What's everyone's consensus on cases for the iPhone 5? Is there one that's slim but not damaging? How do you keep the sand out? EDIT: To clarify, the Apple Store is replacing my phone, and I don't want to trash the replacement.