Gogurts WILL keep the kids quiet in the backseat of the car on the way from Costco so you can peacefully get home and feed them lunch. However, they are only the cleaner form of yogurt for the three year old, NOT for the one year old.
I had to carry the car seat into the house with him still strapped in it so I could figure out a sensible way to get him cleaned up. Yes, I was hoping for a "sensible" action to make up for handing my baby a squeezable yogurt.
He decorated the car window with it. You can't appreciate how well he'd rubbed the stuff into his buckle, shirt, and legs from the pictures. He was very thorough.