Tips on getting motivated again to do homework?

I am in college and struggle with that too. What seems to help me is to break the work into increments. like 10 math problems, or 3 written pages, or read one of 4 chapters. Then when that is done reward yourself. But you have to be disciplined. Choose something you enjoy. Lets say you did 10 math problems, then you get your reward. Watch 30 minutes of your soap, or kiss your boy/girl friend for 5 minutes. but when your reward is up, go back to your work. Set another deadline with a reward. Go for a walk around the block. That is a good one b/c it helps get your blood moving again and energizes you. Anyway, break it up with rewards. Just make sure it is not something that would keep you from finishing your work. (like a beer)