More from CafeMom: Mom Shares Urgent Easter Candy Warning After Her 5-Year-Old Chokes to Death More from CafeMom: This Mom & Baby Are Calling BS on People Who Think Preemies Can’t Breastfeed Before 34 Weeks “They also sell something like this on Etsy. We have it on every one of our car seats (on both sides of the car seat just to be safe)!!!!!! Best $10,” one parent commented. Another added that this isn’t just helpful for car accidents, but also for whenever your child isn’t with you. “I always made sure anyone I left my son with always had a note to get him medical attention if needed. But never once did I think about putting one in his car seat. Great info!” she added.