Its three in one deal really. But most people don't see it like that. They only use the insides and throw the rest out. We are here to tell you that you can save money, be more environmentally friendly and reuse eggshells and cartons in ways that can really benefit you! You've paid for all three so why not use them to the fullest? If you throw your eggshells into the compost, we applaud you. Awesome work, but did you know that this is more you can do with them? Just keep reading.