I reuse my napkins until they are pretty well-used, as they are paper, and even use the used ones to clean up after the cats, as needed, to save using paper towels. I cannot switch to cloth, as I cannot afford to pay the laundry room machines for more than 1-2 loads/week.
I use two small fans & open patio door & only window for fresh air & to keep use of a/c down to a minimum. I have recycled for many years, and am not replacing things like clothing until what I have is worn out too much to wear in public.
I am a Life Member of the National Wildlife Federation (for over 40 years now) & support The Nature Conservancy (the CA branch created the Consumnes River Preserve, which I think I indirectly helped get started by doing a nature-photo project for an architectural student of that area over a 3-day period. Used Twin Rivers Road & Thornton Road for the project & that's where the Preserve was established about 3-5 years later. (I had recommended to the student, when she asked what to do with them when she didn't need them anymore, to give them to the CA Nature Conservancy, & I guess she did - God bless her!) I don't use the 'local' nature trails much anymore, due to the cost of gas, but I do enjoy the birding photos my online Sacramento Birders Group take along such trails - including the Consumnes River Preserve - one of my favorite spots.