Some notes taken from Ian's workshop about Actions and other photoshop wonders.
To create an action --->
Action > folder > New Action (which is like the new layer button) > function key to F(something) > your actions will start being recorded so be economical with your actions > remember to stop recording when your done!
To repeat the action simply press the button you set, ie: F3
To seperate the drawing from the page --->
create Alpha > ctrl A > ctrl C > channels > new layer > ctrl V > ctrl I > ctrl click on Alpha > Back to Layers > create a new layer > paint bucket black > ctrl D > delete the background > duplicate the layer
A bit dry, but I hope it helps.