You do all you can to keep your kids safe, but did you know that when they’re in the car, children under the age of eight and shorter than four foot nine should be restrained in booster seats? If you didn’t, you’re not alone: In this country, 80 to 90 percent of them aren’t. For National Child Passenger Safety Week, February 13 through 19, learn how to protect your kids in the car by logging on to www.boosterseat.gov. Then buckle up and breathe easy.