How do you balance your environmentalism and your using natural resources?

We all use resources. Some are man made and in the end they all affect natural resources. Some natural resources are consumed such as wood and water. Some are replenishable some are not. Some people think of the size of their carbon footprint, some don't even know how to figure out their shoe size in this. Cars are made from parts from all over the world and if we buy them here there is the cost of fuel to get them here and to build the ships that get them here. Sure solar panels are great but think about the chemical processes it takes to build them and how environmentally friendly they really are. Trees are carbon in, carbon out, so buying the wooden hairbrush isn't using petroleum product to make plastic but the wood will break down and release the carbon back into the environment as well. How do you balance your use of resources and your sense of environmentalism?