iTech Deals offers the Aduro Grip Clip Universal Car Mount for Smartphones for $5.97. Coupon code "ADURO1" lowers it to $4.99. That's the lowest total price we could find by $6. It features 360-degree rotation and compatibility with most smartphones, including the iPhone, Galaxy Note, and more.
You can also buy two Aduro Grip Clips for $9.97 before the above coupon, $8.99 after.