Think about what each person needs before you load the car. A refill bottle, a spare jacket, and an activity pouch are easier to find when they have assigned places.
Make one passenger kit
Set out a water bottle, a snack, and one or two activities for each passenger. A back-seat organizer with pockets or an open pouch can keep these items together. Check the attachment instructions and make sure the organizer leaves seat controls and safety equipment clear.
Keep refills in the cargo area
Pack extra snacks, layers, and supplies in a separate bag or trunk organizer. Put the items you will need at your first stop near the hatch so you can reach them without unpacking everything.
Reset at each stop
Before you get back on the road, put loose items away and empty the rubbish pouch. Check that heavy items are low and secured according to your vehicle manual.