I can drink a whole 2 liter in one day at work. I am not a good sleeper and depending on how tired I am will determine how much I drink. And, before anyone says it...no I do not drink any at night. My last drink of pop is around 4:00 in the afternoon. I don't sleep just because...I never have been a good sleeper.
On the weekends, I wake up later than normal and am usually craving my diet coke. I am an "ice in pop" drinker...I think it has something to do with the straw....lol
I can't remember the last time I didn't have at least one glass of pop in a day.