There is nothing worse than working hard to save money on your vacation -- only to see it blown away on food bills and restaurant expenses! With a family of hungry kids, food can easily be one of the largest parts of your travel budget. To save money, try to stay in places where you can cook (like condos or efficiency units) and bring your groceries with you on the trip. If you can't bring your groceries from home, purchase them BEFORE you get to your final vacation destination if at all possible. Groceries at ski resorts and beach resorts are often 50-100% more expensive than they would have been several miles out of town. If you're going to an amusement park, think about taking a picnic lunch with you to save money.