[Cenright]

Or you can be freaky like me, and come up with something interesting, Like the Crossover Method.
My left hand does the left and right.
My right hand does the up and down.

Since I still use the arrow keys, my right hand crosses over my left, thus the name.

But really, it is up to you how you play. As you play more, learn to adjust your play style to make yourself faster. (Even Tiger Woods changes his golf swing to try to always find a better way.)