Everyone, everyone ... Sketchbooks will be do from all adv. art levels within the next week.
work from the front to the back (so there will be room for the entire year)
generally speaking, use both sides of the pages
don't focus on "finished" images - though those are o.k. too
don't cut anything out - if you don't like it, work over it, paint over it, erase it, etc.
but "mistakes" are good
study drawings should be done on separate paper
but DO use the sketchbook as a place to visually brainstorm
really I'll be looking at QUANTITY.
but effort, improvement, and quality do factor in as well.