Seems like a BS thread but I’m a sucker. My biggest thing is cutting down on plastic consumption. Less oil and less plastic in the landfill/ocean. Easiest is bring your own grocery bags. Not sure why you wouldn’t. No more single serve water bottles. One nalgene will last ten years. Compost. Less trash means less trash bags. You can get a little counter top bin for cheap and then dump into your yard recycling or just a pile out back. Easy enough. Ditch the baggies at the grocery store. You are going to wash it anyway. No single serving “meals” where you get 8 different things, each in their own container. The worst is the new wave of blue apron style meals where each ingredient is packaged individually. Lots more but that’s a start.