Changing out a short servo wire with a longer one so that a wire extension does not have to be used. Also shows what is need to make your own extensions. Just add a female connector instead of soldering to the servo.
Here are some links to Hobby King where I bought my parts.
http://www.hobbyking.com/hobbyking/store/__80992__Flat_26AWG_servo_wire_2_mtr_R_B_W_.html
or this wire
http://www.hobbyking.com/hobbyking/store/__78173__Twisted_22AWG_Servo_Wire_Red_Black_White_1mtr_.html
http://www.hobbyking.com/hobbyking/store/__9632__JST_SH_Servo_Plug_Set_Futaba_Gold_Plated_10pairs_set_.html