The rich don't just drink water, they hydrate. In my opinion, hydrating usually happens in a spa.
One of the best spas on the west coast ( if not the world )is the Ojai Valley Inn and Spa. They hydrate you with glass jars filled with chilled citrus cucumber water that is available in almost every corner.
Have this handy in the fridge at home. This will make that recommended 64 oz. a treat.
Cucumber Citrus Water
Fill a glass ( no plastic !) pitcher with water.
Add slices of lemon, oranges and cucumber. Don't overdo it, just a few ( say 4 slices ) each. Let the infusion of the citrus and cucumber permeate the water for about an hour before serving.
Don't forget to use a really nice glass...why not crystal?
Make this a glamorous daily beauty ritual ...go ahead -you deserve it!