Pam,
That was really funny about keeping Trevor in the carrier until Wednesday!
It was a good idea to leave the carrier out for him to explore. That's what I did with Charlie. He was even sleeping on it!(soft carrier) When the time came, I didn't make a big fuss about it, I just put him in front of the carrier door and gave him a little push in. I left it in the same spot that he was used to seeing it in, so nothing would seem "fishy" to him. It was fine, and I had given myself 45 minutes of "wrestling" time to try to get him in, so I ended up having all this time to spare!