I though this article was crazy http://shopping.yahoo.com/news/designing-the-packaging-free-future-212537958.html It talks about using washable inks and other metheds to element packing. I think however that it is nieve to think that this will work across all products and will even be used, because when the product gets wet or is in high humidity the ink will run and ruin the product. Interesting to think about but not practical at all.