10ft Micro-USB Charging Cable
The Moto X comes with a blazing fast Turbo Charger that recharges the battery faster than any phone around, but the cord isn't very long. I hate short cables, and would recommend everyone get a few 10ft cables for charging and syncing.
I have about 5 of these Anker 10ft Micro-USB cables, and they're amazingly useful for around the house, traveling, and everything else. If you've never bought a quality (not a cheap colorful one) 10ft charging cord, this will change your life.