When I was a grad student, I preferred to spend time in my office and go home only to shower once every two or three days (especially before TAing a class, when I would also put on shoes). This annoyed some people, and eventually they got through a policy that the building was closed for 8 hours at night, told only me, and enforced it only against me. My TA union went ballistic when the campus police got involved; in the grievance process, we eventually settled that I only had to maintain a residence outside of the office (or something like that, I don't exactly remember, but anyway it was something that I'd been doing anyway), so a victory for labour solidarity!
There was another person around at this time, a munchkin dedicated to gaining XP in studying interesting mathematics. Actually being a grad student had too many distractions, and he quit that before I got there, but he continued to hang around and collaborate on research with one of the professors. Every few years, he would take a sabbatical for a few months to get some money by coding, but mostly he slept in my office and ate a microwaved mixture of rice, cheese, frozen mixed vegetables, and spices. He did what I was only accused of doing, and I don't know why the authorities never went after him; I think that his existence just couldn't be classified in their consciousness. (It's been a few years, but I'm pretty sure that he's still there.)
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.