What size "glass" do you mean, 8 oz?

If so, I drink about 12 per day. I take (3) 24 oz. bottles to work, and then have (2) 16 oz. in the evening. And I also have a drink before bed. Glug glug glug.

(And that's not counting 12 oz. of coffee in the morning, nor a 12 oz. iced tea at lunch)