Coffee is the most popular drink in the world. More than 400 billion cups of coffee are consumed each year. Even with such popularity, coffee is still considered a luxurious commodity in some countries. The most expensive of all is Kopi Luwak, which can be sold for as much as $500 per pound. That is why most of us try to enjoy each cup comfortably with a book or a paper. Not in the US, Americans work 50-hours a week which means they rarely have time to really enjoy a cup of coffee. They prefer their coffee on a large cup, or venti, and to-go.