When I first tried out time boxing while sketching I panicked. Time boxing is allowing yourself a set amount of time to perform a task. How could I possibly be creative with tight time restrictions? Surprisingly, knowing that I only had a set time to deliver the sketches it helped me focus. It kept me from getting side tracked. Going through the exercise and seeing the amount for sketches I was able to come up with made me feel great and completely changed my mind about time boxing for results.
Want to learn more about time boxing? Here are some websites that go into the process in more detail:
Timeboxing - Zurb