Your cell phone needs recharging, data transfer, and a holder from time to time, but you could not bring a cable and holder everywhere everytime. Yes, "Apple Worm" is your right choice!
$20 Pre-order here: http://igg.me/p/601606/x/5153827
"Apple Worm" is currently the most portable multifunction USB data cable mobile phone case in the world for iPhone5/5s/5c. It can meet your needs to charge the phone and data synchronization just do as the same as the standard USB cable. The date cable can also be used as a phone holder and an earphone winder.