I also average around 2-3 cans a day, sometimes more depending on how much I have at home. I have to one when I'm eating my dinner and I get a tad bit annoyed if I don't have one or if they're not chilled. I've stopped buying cans at work and stick to water throughout the day but its definitely not enough.
I drink about 1-6 cups of coffee a day. Got to have one in the morning. I smoke as well, maybe 10 a day. More on the weekends if I am drinking.
Rarely I'll grab a can of Relentless on the way to work, I grab the train so I drink it on the station. People who don't know what a can of Relentless look like or are from a distance must think I'm a ****head because they're a similar size to a can of beer. I drink it quickly and out of sight of most people.
I'm terrible >.<