When eating out, it can be nearly impossible to find an eco-friendly option for containers in which you can bring your leftovers home, so you might think about bringing your own. The reality is, restaurants can't use your reusable containers because of health code laws, but you can: Just transfer leftovers at your table into your own reusable containers. If you forget, ask your server to package your leftovers in a single container instead of multiple ones. This will cut back on waste significantly. And if it's something like a burrito or a sandwich, ask if you can wrap it in aluminum foil only. It'll do the job, and the foil is 100 percent recyclable.