What are 5 of the best ways to avoid being drowsy at work?

The best way to avoid drowsiness is to make sure that you get a full 7 or 8 hours of sleep the night before. You may also want to make sure that you have a good breakfast, drink only one or two cups of coffee, possibly take a 20 minute powernap during your break, do the most boring work when you are most awake so that you don't fall asleep doing it.