BicycleStore Piddle Pad Car Seat Protector, Waterproof Liner Potty Training Pads Machine Washable Toddlers Car Seat Baby Infants Saver Cover Mat for Child Stroller, Dinner Chair (Black+Grey)

Make plans for bathroom breaks during the car ride. Limit liquids before We got a car seat protector that helped because washing the whole car seat is a pain. My daughter stayed in diapers for naps for a while and at night even longer. We took her out of the overnight diapers once she was able to wake up dry.