Living in Japan, I've become more aware of recycling. I bring my own bags whenever I go shopping and try not to take any plastic or paper bags whenever possible.
So you may or may not be thinking...what do I line my garbage cans with? In the kitchen, I use the mandatory city garbage bag. It is clear and has the mandatory city stamp on it.
For the toilet and bathroom, I use the plastic wrapping from the toilet paper. Whenever I buy a package of toilet paper, I open the top carefully and use the rolls of toilet paper. When all the rolls are gone, I put the "plastic bag" into the trash as a liner.
Do you do anything special to recycle or save resources where you live?