Nathan's guide to Cat moving

First, park your cat in the approved carry case.
Then sedate him with a short whack to the head.
Strap the cat in so he doesn't move in transport.
Zip careful around the edges so you don't get hair caught in the zipper(It is really hard to get out).
Here's one I prepared earlier. Make sure the tail doesn't stick out.
A bypass lopper is a quick and easy way to trim off any bits still hanging out(People have had their pets confiscated at baggage handling).

NB: No laptop bags were injured in the making of this.