I carry a photocopy of my drivers license with contact info on the back in my flat kit but never thought about my insurance card until a friend had a blackout and subsequent crash on a charity ride and was taken to the hospital by ambulance. She was wearing her road id and had a copy of her drivers license but her insurance card was 30 miles away in her wallet. She and her husband now take their insurance card on every ride and she is thinking of getting a new road id with her insurance info on it. Not a bad idea.