Which episode did Marge, Bart, Lisa, and Maggie move out, leaving Homer behind?

Question

There was an episode where Marge, Bart, Lisa, and Maggie move house. And Homer stays behind at their usual house. Can't remember why, but it was probably one of the episodes where Marge splits up with Homer.

Answer 1

One time they moved to a motel, because of Homer refusing to give up a gun. It was titled "The Cartridge Family".