Thanks. I think I'm going to use the large dog crate that I have (it folds flat) so he can go "outside" when we're camped. I'm still going to need a harness for him though, not so much for walking but just so I can have him secure.
Has anyone built an indoor cat crate? My cat is an indoor cat but loves to sit out on my screened-in porch at home. I was thinking of building a cat crate on wheels so I could put him in front of an open door when we're parked.