the thing about drinking lots of water is ur piss will be clear and they might ask for a retest later, drink cranberry juice and stuff like that, stay away from poppy seed muffins, i can just see that seinfeld episode playing in my head, also using old pee doesn't work anymore unless ur willing to basically stick it up ur ass(cause of these new temperature reading guizmos on the side of the bottle, ands the last thing to remember is have fun remember its ur piss there handling not the other way around, good luck brotha