I have the Day Joy glass screen protector on mine from Amazon along with the case featured today here on the front page of WPC the Insipio NFG and carry it in a PDair leather belt holster.
It is the best solution I have found for me and my job. It provides adequate protection against scratches bumps and drops.
I've found that the Insipio case gives great gripping while allowing you to slip it in and out of your pockets or cases and the Day Joy glass screen protector is the best you can buy for the screens so far. The Insipio doesn't add a lot if bulk nor detract from the phone and allows good a good feeling for the buttons while on. The PDair belt holster is a high quality (cost) solution as well. Used in combination it works great. It's a little tight in the beginning but stretches in time to accommodate the extra of the Insipio case. It also rides close to your body and doesn't stick out much to get snagged on anything. It is just a great holster made of high quality leather, perfectly stitched. It's pricey like I said,but in my line of work,worth every penny for it.
Mac