The University of Leeds has an article (which I found through the Guardian) listing six things individuals can do to make a meaningful climate impact. My comments in brackets.

1. “Eat a largely plant-based diet, with healthy portions and no waste.” [this sounds good]
2. “Buy no more than three new items of clothing per year.” [I’m not a big clothes shopper, but even socks and underwear wear out faster than this. And my family’s economic livelihood requires me to not look like a complete slob at work. They also tell us to exercise, and that is going to wear out our footwear at least once a year. So I am not sure this is practical. What we can do is resist the fashion industry mind control telling us clothes are disposable, and just replace them as they wear out. We could move more towards mending clothes and shoes that wear out, but this is not a good use of time for busy people. I like the idea of taking more items to tailors and cobblers to be repaired, although this will likely not save money given labor costs in developed countries vs. low labor, material, and shipping costs in developing countries. We could also make it much easier to donate and repurpose old clothes. Right now shoving them in a trash bag is often the easiest thing for busy people to do.]
3. Keep electrical products for at least seven years. [Again, I think we can just replace things as they wear out. Getting service and repairs on appliances is way harder than it should be, and getting good information to inform a repair/replace decision is also very hard. And again, donating/disposing of appliances and devices is hard. My basement is full of old things I know I am not supposed to put in the trash, but there are not easy pickup options and I have not had time to take them to the place I am supposed to take them, partly because I am a good-two-shoes who doesn’t drive much (see below).]
4. Take no more than one short-haul flight every three years and one long-haul flight every eight years. [This is a tough one. I understand flights are a big problem, but I also think there is value in international peace and understanding to people traveling more, not less. Carbon offsets are out there, although I know they are not perfect – we need better information on how to access these and which programs can be trusted. Ultimately, I think this one needs to be solved by governments and scientists and industrialists – hydrogen fuel cells seem promising. High speed rail could solve the short-haul problem if our cowardly cynical politicians would let that happen. Driving those short and intermediate distances is not the solution – again see below.]
5. Just don’t drive. [I am 100% on board with this, and unlike the vegetarian thing I practice what I preach. People say they can’t do this because of where they live, but I always urge people to think about where they might like to and be able to live in five years. That is a long-enough time frame to think about making a change, but short enough it is not the bulk of a person’s life. Of course, the supply of walkable places in the United States is extremely limited, and limited things that are in high demand are expensive, so the vast majority of people assume this is not a practical option even if they like the idea. Many people don’t like the idea because they have never experienced and can’t imagine a non-driving-based lifestyle. I am not talking about forcing people to change lifestyles – I am talking about our cowardly cynical politicians giving us a lot more choices.]
6. “Make at least one life shift to nudge the system, like moving to a green energy, insulating your home or changing pension supplier.” [These are actually short-term investments that have a longer-term positive return. This is something we irrational, short-lived humans are not good at doing, but where there is free money in the future that can be shifted forward in time some government program or entrepreneur should be able to come up with solutions. We don’t do this because of failures of communication, innovation, or trust.]

So live somewhere you can make most work, school, and shopping trips on foot or by bicycle. Eat less or no meat. Replace stuff when it wears out, and think about repairing and/or donating rather than just junking. Work toward home energy efficiency. I don’t want to stop traveling, but I hope doing some of the other things will at least partially offset my travel impacts, and I can think about offsets to cover the rest. And then we need to improve our democracy and get rid of those cynical cowards!