I don't do the coffee thing....can't stand the taste. I am a Mountain Dew freak! If I am going to have caffine, that is what I go for. Every morning, that is what I drink. That wakes me up and gets me going for the day. I love it so much that my wife and I served Mountain Dew punch at our wedding! Let's just say there were a lot of old people that night that didn't go to sleep!