We saved over $150 on beverages at Disney by bringing in our own 20 oz. beverages and pouring them over a free glass of ice, (20 oz. bottles of soda and water cost $3 there.) We saved $200 by eating cereal, fruit, juice, milk and yogurt in our room and avoiding the Polynesian's quick service counter which served the same. Plus, we bought chips/cookies for evening snacks.
Keep doing what you're doing.
Always on time and prices are very fair. Will definitely be using again next trip to Disney