Working as a shop cleaner was pretty fun. Good exercise, didn't have to talk to anyone just stick on some music and hoover and dust as much of the place as I could for a few hours each day. Very consistent and good routine but low pay and no real progression

Also low-key loved working in a health clinic lab. It was very small so just me with a few bits of analytical kit. Nurses would come drop blood samples off and I'd have to get them processed and get the results to the doctor within 30 mins so they could discuss with the patient during their appointment. Most of the stuff was automated if you kept everything well maintained and calibrated you could spend most of the day just sitting around. I liked nurses being able to stop in and chat for a few minutes, but then also still having my own space as they'd need to go off and see clients through the day. Just being the one person in the lab let me take a lot of ownership over it and I could be proud that I was making some systems and ordering to the space that was genuinely useful and making us more efficient as a unit without having to get involved at all in anything social organizing people directly whatsoever lol. That said the pay was also terrible, there was no upwards career path outside of going back to postgrad school, so I left after a year.