Delivering mail was honestly decent work. but for a single item. It was brainless enough that I could occupy my mind with whatever I wanted to all day, I barely had to interact with other people or put on a fake smile, my boss could call me and shriek at me but still couldn’t get in my face (and wouldn’t fire me anyway since they’re hurting for employees), I got fresh air all day, and had constantly changing scenery. The one dealbreaker was that it monopolized my time; 10 hours a day for ~9 day periods. It’s a shame since it had a lot going for it, but I am pretty glad that I got the hell out.