Read Arnold's New Encyclopedia for Modern Boydbuilding. After I read a couple of pages of that I just wanna get to the gym.
Also cut out pics of muscle magazines, people that you're striving to look like, and post them somewhere: mirror, fridge, door, etc.
I think I've become addicted to the gym, if I could I would train 7 days a week I would. My off days are my least favorite days of the week, all I can think about is the next time I'm going to be able to go to the gym. There's something about the pump that feels so good and when I get out of the gym in the morning I'm ready to conquer the day.