This is one of the reasons i returned the flip case i got with the sg3....its not the outside of the case you have to worry about but the soft part inside of the flap.....i worried that it would be uncleanable. i hated the way the flap fit in my hand when open. returned it to verizon just a couple days into it.....
Not to mention when you want to take a pic. Was it awkward?
everything about it was awkward....closed it was nice, although after holding the phone with the flap folded around back for a while i found the flap did not want to close flat on the screen but popped up slightly ....
once opened the flap was always in the way and i never found a good way to hold it . these phones have such a slim profile that it seemed a shame to muck that up with a hard to hold flap.