Sorry, I forgot to answer this one! Make sure to keep the baby fed (I know, a given, right? But time moves at a different pace & so sometimes I haven’t realized how long it’s been since my kids last had a snack or meal & they get cranky instantly- so having snacks is my #1 lifesaver with kids). Staying hydrated & protected from the sun is important too so make sure you have things for that!
Also know that the parks each have a baby care center- at the end of Main Street in between the PhotoShop & First Aid (before the Plaza Inn) on the Disneyland side & then between Ghiradelli’s and Carsland in DCA. They have ample changing tables, feeding stations for babies eating solids (and a microwave to warm up their food), nursing stations for moms who want a more private quiet (and air-conditioned) place to nurse, and also a little potty for kids under 42" to use with a little sink to wash their hands. In DCA there’s also a companion restroom inside the childcare center so you can both go, but in DL there is just the little potty. Also both baby care centers sell diapers, baby food & I think even formula but take cash only. I don’t believe they sell any Tylenol/Ibuprofen but I believe some is available for purchase at the PhotoShop next door (I think it was kid’s ibuprofen…it might have been adult’s…). We have used them many a time especially when my kids were newly potty training for the little potty and to change diapers since most bathrooms, especially in the Disneyland side) only have 1 or 2 changing tables & there’s always a line in the middle of the day to use them.
Let me know if you have any other questions about kids in the parks! The first time we took our kids they were 23 & 3 months old each. Now they are 6(almost 7) & 5 and we have added another one who we took for the first time to the parks a year ago when he was 2 months old. So we have definitely been there, done that!!!