one in five had blood alcohol levels high enough to impair their driving. that s the designated driver. before you get in your car this morning, we have cost-saving commuting steps you will not want to miss. each year the average household spends almost $3,000 on gasoline alone. if you re one of those people, our personal finance expert vera givens is here to help you and your family out. good morning. number one, you say improve your gasoline mileage. how? regular tuneups is a way to do that. check the fluid, filters, spark plugs. clean out your trunk. maybe you ve got stuff in there weighing down things that s reducing fuel economy. you might also want to consider changing your driving habits because fuel economy is proportionate to