Know when you are productive. Schedule a specific time for each activity plan ahead and stay with it. Take time for yourself to get away from things. Use different colored pens in appointment books to distinguish between exams, meetings, and deadlines. Know your resources and how to use them.
Plan ahead don t wait until the last minute.
Get a daily calendar with space to write stuff down in. Carry pocket work. Always carry something you can do while waiting for class to start, waiting in lines, etc. Make the most of transition times. While walking home from class, plan how you will spend the rest of your time.