S.S.
I have always carried both. There is always the chance that something will spill or leak in the diaper bag (juice, formula, milk) and I didnt want to worry about getting it on the things in my wallet. Also at one point (I think around 10mnths) there was not enough room for both my things and his things. my son is almost two and we still carry the diaper bad...he has a lot of things lol! diapers, wipes, a sippy cup for water, books to entertain him in the car, an extra change of clothes (because if we dont bring it will need it. There have been several quick trips to my mom where he has leaked through his diaper and went home wearing one of my sisters tee shirts) and sometimes a small snack depending on how long we will be out.