we always had one bag with everything I needed, and maybe 1-2 things for the baby that we brought with us when I first got their. but some hospitals have a delivery room, and a post partum room. so we always waited until we knew where we would be staying the night to bring everything else up, so we weren't having to move a bunch of stuff from one room to another lol

When it's time for me to go I have an immediate bag with everything I'll need right away that my husband can grab real quick if we are in a hurry. We have a bigger bag packed for the 2 of us and the diaper bag that he can leave in the car until I'm settled in to my room. You don't need to bring the care seat up until you're ready to leave.