1 "Monster Energy Drink" for Morning and 1 for Noon.
Outside of that i'm usually bouncing around from "Ginger Ale", "Orange Juice", "Water", and "Lemon Aid".
I want to say it's one to one, but in all honesty I'm a bit fuzzy there. I can recommend JoyFreak's sister site AdminIntel - Admin & Webmaster Resource where there are lots for people of varying degrees of expertise with development, you likely can get a far more precise answer there!