I walked by the stairs and noticed this:
These are the important people in Cooper’s life. He absolutely loves Phineus, Ferb, and Perry. He took them with us to the store and I told him he could take either Phineus or Ferb. He couldn’t decide between the two, so he left them both in the car. He also asked if we could name our new dog (which we don’t have by the way) Perry.