Here’s a rough list of things I would tag with “sustainability”

• I try to walk 10k/day on average. It improves my mental health for a whole lot of reasons. I barely use the car so it reduces my family’s carbon footprint
• Eat less meat. I’ve tried vegetarian but it doesn’t work for me. Less meat is still better than other options
• I read from about 10pm to when I get sleepy. Once I get sleepy, I go to bed. In case I can’t sleep, I read more
• I have an 8pm limit on work, even if I want to do overtime, I try not to exceed 8pm. Remote work comes with risks, one risk is blurring the line between personal and professional, and putting a strain on family
• We adopted a liberal minimalism at home. I wouldn’t buy clothes if I don’t need them, or if I don’t have empty space in my 2 drawers. I still buy paper books though, shame on me.