Go Green The United States Postal Service (USPS) has issued a new set of forever stamps with the Go Green theme. Each stamp in the pane highlights different ways to become more 'green.' Most of us don't send that much snail mail now that we use e-mail, but a few stamps can remind the recipient of ways to "Go Green." The post office also sells "Go Green" reusable bags and a "Go Green" kit. For more information, visit www.usps.com.