Plastic bags. Have you ever stopped to reflect how much of our food comes in plastic bags? Reusing those bags can help you reduce your purchases of - plastic bags.
The bread, cheese, chicken and lettuce in this sandwich all came packaged in plastic bags. All of those bags can be used as lunch bags. Or, as packaging for other food stuffs - a loaf of home made banana bread can be slipped into a bag like the one shown above, rather than being wrapped in new plastic wrap or aluminum foil.
So save those bags. I stuff them into an emptied tissue box, and pop one out when I need it. If you make lunches every day, as I do (sometimes one, sometimes three depending on our work schedules) you will find that you save money and reduce your trash output!