A good cup of coffee, first thing in the morning especially, can help wake you up. It can help you be more productive. Tea can provide the same kind of pick-me up, so try that out too. Try starting out your day with a hot beverage if you want to get more accomplished.
If you ever want to hear an interesting story, you should ask my Dad about how coffee was the real reason America won Revolutionary War. However that story is for another day.