I have just started a new job as a pre vis animator at Black rock studio and have resurected my doodle pad which sits between me and the keyboard. I use this to doodle rubbish and draw things that i have seen (hence the little boy from the "UP" trailer i watched, and if i am being good, to rough out scenes or ideas that i am going to animate. Here are a couple of pages from the new job. They are generally collections of ref that form the starting point to an anim.
Anyway back to work for me :o)