What is the easiest way to get better video card performance on a laptop?

[Jskid]

I've got a HP Pavilion with a crappy built in video card. I have not been able to find a store that sells video cards for laptops and even if I did, are they very difficult to install? Is there such a thing as an external video card that connects to a USB 2 port and increases the laptops performance?

 

[JMMD]

In almost all cases, the video card cannot be upgraded in a laptop. At one point a few companies were developing external video cards for laptops but I'm not sure that ever went anywhere.