I’ve not long made the switch from grunt to gulp, and I’m still getting my head around it. I have bought the screencast (worth every penny), but it doesn’t go into editing the gulpfile.js (I guess that would be a topic all of it’s own?)
Anyway I would like to add gulp-csscomb https://goo.gl/okJuzV to the watch process, so that when I save it runs css-combe and ‘cleans’ things up.