I've got a vegetable patch. I buy most of my food locally. ebay is my friend for 2nd hand clothes and shoes. I mainly eat fish that's been caught locally, vary rarely have meat tbh. I don't buy bottled water, I filter what comes out of the tap. I don't have central heating, I've got a burner that I use compressed sawdust blocks on.
I'm also involved in a few projects that promote and manage compostable packaging, tree planting and rewilding of low grade agriculture land.
Do I still have a carbon footprint ? Of course I do. I'm just trying to make some changes that I can.