I don't carry a bag. That's all I need for a hands-free solution to control a large phone. I used to keep it in my back pocket, but that was a bit of a hassle (too big a chance of it falling out, especially in the bathroom). I would keep a small wallet and keys in the front pocket on the carabiner. Now everything is in this very durable phone shoulder bag and I attach the keys to the strap.
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