Ask HN: What mind hacks do you use to do a non-fulfilling job well?

Interested in hearing from HNers who have a full-time job who don't find it fulfilling, and have no intention of climbing the management ladder: What mind hacks do you use to motivate yourself to get out of bed, get to your job, and do a good day's work?

(This is all assuming you can't quit your job, so no quit-your-job comments please).