I would add proper lane usage and following distance. If you’re on a multi-lane road you should be passing the people on your right. If you’re not, get over to the right lane. Leave enough space in front of you to stop in case of an emergency, this also helps with congestion as the space allows you to keep rolling at a slower speed rather than having to stop and go which propagates to everyone behind you (unless they leave enough space to not have to stop) and causes a bigger delay.
I started mending my clothes a while back. I’m not great at it but for the most part it’s passable enough to wear out in public and the process of sewing it is actually really relaxing. It’s nice to be able to save something that would otherwise be tossed out. Also I was able to turn an old t-shirt into dust covers for some of my PC peripherals I don’t use all the time which I was pretty proud of.