Another vote for the Quality Cage Company Stow-n-Go. I've had mine for several years now and it gets used a lot. It folds down flat and sets up in a flash. There's a doorway in the front and top also opens up. I stash it flat in the car when I'm traveling with the ferrets (I have another cage I use in the car.) I've also used it as an isolation cage for newcomers. I usually use it with one hammock and a sleep sack. Customer service was great when we purchased ours. Here's the link again in case you missed it when Tracy posted it yesterday. Click the picture to see how it folds down. <http://qualitycage.com/index.php?main_page=product_info&cPath=129_169_179&products_id=958> Sydney [Posted in FML 6518]