Ewww...the GRE. I remember my dad made me sign up for it because he thought I needed it for NYU....but as it turned out, I didn't. And so I didn't study. And I scored miserably. But none of the schools I applied to required GRE scores, so it all worked out in the end.
What kind of programs are you applying to that you would need GREs?
And it's ok to work a little drawing in there to relax...you need to take a breather every once in a while.