When I've had longer-running test/lint suites in the past, I've added simple sounds to the ends of their run scripts (birds chirping for success, alarm blare for fail) that help me draw my attention back. I had an issue where I would go off and read the news, or social media, or whatever, when running my tests, then suddenly it would be twenty minutes later and not only would I have wasted fifteen minutes, I'd have forgotten what it was I was even doing...
