I'm using a StarTech 1' Y-Cable like this. StarTech makes pretty good stuff. Here's a 6" one but it's not a Y-cable so not a direct comparison to what I am using.

EDIT: Reviews are saying that 6" one is 28AWG and does not carry enough current to support fast charging. Don't get that one! The Y-cable I linked to is 24/28AWG (28 for data 24 for power).

EDIT EDIT: Found a 6" 24AWG cable