This is how we all manage to live together as one BIG happy, furry family. I'm not saying this is the only way to do it, just what has worked for us. More info on the benefits of crate training, when used correctly : http://www.bestfriends.org/theanimals/pdfs/dogs/cratetraining.pdf
http://willamettehumane.org/documents/benefits_of_crate_training.pdf