Really useful when you need to go to work, have 30 minutes to get there, but you just want to sleep. Imagine, you could stop time, sleep all you want, go to your workplace, than restart the flow of time like nothing happened. Or want to rob a bank ? Just stop time, waltz in there without care, grab the money and be gone before they even get to know you were there.
Awsome power to have...*dreamy face*