Drawing curly hair

I decided to draw some curly hair.  For no reason, really, other than wanting to see how to draw curly hair.  My only insights into the process are: draw a bunch of squiggly shapes.  Then, draw a lot of little short curvy lines going one way and then the other.  Make some parts darker and leave some lighter.  After doing this for a long time, you will have a nice drawing of curly hair.