I ordered a new carseat for Max today. He'll be passing his current one on to Marty soon. This isn't the one I got but Max noticed it in the Sears catalogue and keeps saying how nice it is. I tell him we're not getting that one, and show him the one we're getting, and he says "oh yeah." That's his answer to many answers we give him. "Oh no" and "Oh dear" are two of his other favourite expressions.