I'll re-use the boxes around the house, and wash and keep the bags for my own use, but everything I ship or sell is in a new bag inside a new Styrofoam lined box. Being green is no excuse to send someone a snake in a used bag or a box that has had who knows what in it. To me, that's like going to a pet store an buying a snake, then having them put it inside a dirty Sterilite tub for you to take it home in. It makes me mad when I receive a snake from someone, nd it's in an old, used bag, or a box that was used for who knows what before it was used to ship me a snake. It's a blacklist worthy offense, imo.