When we moved 6 years ago we only had Smokey the Elder and Mobius. We confined them to the library that no one was to open on pain of death (j/k). Then after the hubbub was done we opened the door. Smokey made herself right at home, while Moby tried to hide under the radiator!

In a few months I may be moving 7(!) cats to Pittsburgh, but I'll do the same thing. One house we are looking at is a 6 br Tudor so there will be plenty of places to stash the cats!