these are all great ideas - and done one on top of the other, they make a big difference!
i also walk as much as i can (easier in the summer than right now), and make it a point to use as few lights as i can while still being safe in the house. i make it a goal to eat in-season produce, so no strawberries in the winter unless they're the frozen local ones! all water-using machines are run on full, and i choose to line-dry my clothes & air dry the stuff in the dishwasher.
thank you for listing such easy ways to make an impact! following & resteeming!