One of my favorite finds at Macworld this year was the Skiva combo Lightning/Micro USB Cable. This doesn't require much explanation. It is a standard USB cable on one end and the other end has a Micro USB plug with an attached adapter that can turn it into a Lightning cable. It provides both power and syncing to my iPhone and a way to sync/charge my Micro USB devices. Where once I carried two cables, now I carry one. I love that. You can find it on Amazon (affiliate link).