By now, you have probably seen the Go Green stamps that were issued last year by the United States Postal Service (USPS). The stamps feature a variety of suggestions for small, individual actions that can add up and have a positive impact on our environment. We recommend them! And as it turns out, it's not just lip service with the USPS.
The USPS has been working to reduce energy, water, consumables, and petroleum fuel usage. In 2011, these measures saved more th...