What do you do that saves you money AND is kind to nature?
This was inspired by the plastic bag discussion on the "Have you ever done something..." thread.
I don't use plastic wrap - I keep my leftovers in glass containers with plastic lids. They are a bit more expensive than plastic containers but last much, much longer.
I bought a Keeper - it lasts for 10 years, cost about the same as 2 year's worth of sanitary napkins/tampons - which I don't pollute nature with anymore because of the Keeper.
What are your nature friendly money saving efforts?