The backside of your iPhone and iPad is prime real estate. PopSockets (http://www.popsockets.com/) are designed to help you make the most of it.
They expand to two levels, tilt in all directions, and collapse tight against the back of your device to fit in your pocket. You can use them for texting and photo grips, headset management, multi-directional stands, and hip clips.
PopSockets can be customized in a variety of designs. A pair of PopSockets starts at US$15, and additional items, such as the Custom iPhone 5/5S Case, is available, as well.