Oh, here's one that is small, but will add up over time. Two of the grocery store chains here have instituted a policy that, if you bring your own bag, they refund you 5 cents per bag. Now, you can spend money and buy the fancy "reusable bags" so everyone can see you are "echo-friendly," or you can just reuse the cheap plastic bags other stores give you whether or not you ask for them.
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