The small, lightweight infant seats are designed for rear-facing use only and fit newborn babies best. The larger convertible seats can be used in either a forward or rear-facing position and are appropriate for most babies until they reach about 40 pounds. You may save a little money if you just buy a convertible seat, but the infant-only option provides better support for young babies and may be easier to use. Carefully read all manufacturer's safety guidelines and comply with each and every rule. Until your child is at least 1 year and at least 20 pounds, he or she must ride in a carrier in the backseat facing the rear of the car.
Car seats range in price, so shop around, but don t skimp.
This is one of the most important safety items you can get for your baby. But be sure an older seat meets current safety regulations, and never use a car seat that has been in an auto accident even if it doesn t look damaged. In order to be sure that your child is properly strapped in, never add padding underneath or behind your baby. These extra layers can slip or compress on impact, rendering the harness ineffective, slack and possibly dangerous. Buckle your child in wearing only light clothing.