Ever since Andrew was born we've been playing musical chairs with our carseats. Shortly before he was born we traded in our Ford Explorer for a used Toyota Sienna. I love the amount of cargo space we have in this car, and it fits our family of 6 very well.
We started out with both big boys in the back, since they can buckle themselves. But that led to lots of fighting that I was unable to control while driving. And then Ryan's carsickness became an issue. He often gets a headache and feels sick to his stomach in the backseat. This week he threw up after a 15-minute drive to VBS.
So we traded his carseat with Jenna's seat, and now she's in the back with Lucas. However, this makes it a real pain getting her in and buckled. I have to push the baby's seat forward and shove half my body in to buckle her. It's not ideal.
So we continue to play the carseat shuffle.