I agree with Doug.
For the green tea, get a large jug and add at least 6 green tea bags and boiling water. Let the bags steep in the water for a while and then add some lemon and/or sweetener for taste. Drink throughout the day.
There is caffeine in the green tea, so I wouldn't drink it too late at night.
As well, a gallon of water.
You are going to be drinking alot and pissing alot, but the benefits are well worth it.