I try never to bring work home with me. I might stay an hour after school and grade tests, but that's far preferable to bringing the tests home with me. In addition to keeping home and work separate, it forces me to focus on doing the work so I can go home. I've always thought it odd that English teachers take essays home to read them.
Now I understand. I'm reading project write-ups from my statistics students. I don't need to follow detailed calculations, I need to read and comment. Such work is very amenable to being done on the couch with a cup of cardamom tea, much more so than grading math tests is.