It hit me the other day as I was washing out my twins' bottles that I won't be able to do that in the car. I was wondering how other moms do this on long road trips. Do you wait until you make a stop somewhere and use the restroom sink or what? We use the playtex drop ins which will help, but what about the nipples?
It's not that big of a deal. If (heaven forbid), I find myself needing to clean a dirty bottle nipple and there is no bathroom nearby, I pull out a Wet Ones wipe (always carry those) and wipe it down, then rinse with water. I figure that is better than leaving milk and mouth bacteria on a nipple closed up inside a diaper bag.