The process of getting from juice to happy juice is stupid simple: take a 64 oz. bottle of your favorite juice (recommended: grape, cranberry, or pomegranate) with a minimum sugar content of 20g/serving and none of that unfiltered or artificial sweetener junk. Then pour in a Spike Your Juice packet (that $10 will score you six of them), seal the bottle with the supplied airlock, and sit patiently.
Hello, alcohol poisoning. It's been too long.