>#1: I believe in the three Rs, with a twist. This one is TRUE.
Reading, and Writing (‘riting) and Math (‘rithmetic) are the basis for many learning skills. However, the three Rs to which I refer are actually Reduce, Reuse, and Recycle.

My family likes to tease me about my penchant for reusing instead of throwing things away. I don’t hoard junk (at least I sure try), but I re-use a lot. For example, I haven’t bought file folders in years. I often run copies for my class on the backs of old, unused papers. And yes, I buy from used book stores and clothing consignment shops, as well as donate our no-longer-usable clothing and household items to local thrift stores.
I recycle a lot, too. On the rare occasion when we order a pizza delivered, I will recycle all parts of the box that did not touch food particles. Tissue boxes? Tear out the small piece of plastic and recycle the rest. Finish off the cereal? Recycle the box, compost the inner wax paper lining.
Compost is another form of recycling. Grass clippings, food scraps (within limitations), coffee grounds, and more, will end up in the compost bin instead of the garbage can. Seeing the natural process of decomposition and knowing that I’ve contributed in a small way to lessening landfill use is very, very satisfying. Tilling the finished compost into my small garden in the spring is a part of this. We’ve reused that which we recycled, and in the end we’re reducing our purchases of vegetables trucked in from elsewhere, which reduces… well, you get the picture.
Think globally, act locally. It works.