For $ 100 or less, you can purchase a frame stroller with the sole function of attaching your infant car seat carrier when you remove it from the car. (candokiddo.com)
For some parents — especially if they get one of the lightweight car seat carriers to start with — the stroller doesn't really come out until the baby is a few months old. (parentingsquad.com)
Car seat carrier frames like this one are a boon for parents of newborns. (consumerreports.org)