I drink a LOT of coffee. I know it's bad, it's an addiction. I Usually order a medium sized drink with three shots of espresso. I use an espresso grind for my coffee maker at home because I need the full strong flavor.

I can make a pot at 11 pm and be asleep by midnight unless of coarse I am manic. I never get jittery either. Coffee is almost the only beverage I drink besides water. I know sounds bad.