In case you missed… save the paper .. save the env. Need a windows version too (I’m not sure if they came out with it already or not)

The WWF format is a PDF that cannot be printed out. It’s a simple way to avoid unnecessary printing. So here’s your chance to save trees and help the environment. Decide for yourself which documents dont need printing out – then simply save them as WWF.

via Save as WWF, Save a Tree : Home.