Between 0 and 8 cup per day, depend of the day. - When I'm traveling or on holidays 0. I travel regularly in countries without coffee culture and jet lag with

Between 0 and 8 cup per day, depend of the day. - When I'm traveling or on holidays 0. I travel regularly in countries without coffee culture and jet lag with coffee is a terrific mix. - In normal day of work around 5 including 2 in the morning. - In heavy day of work with many meetings around 8. I tend to prefer good technical/design discussions around a coffee instead of endless (useless) PowerPoint session. It's in my experience both more efficient, human and brief.