Whether printing a long formal report at work or doodling while you chat on the phone, try to use both sides of the paper. You'll get through half the volume of wood and other resources used to make it, and cut CO2 emissions by 2 1/2 lbs. for every pound of paper you save. If your printer has a duplex (double-sided) function, make it a default option--that way, you have to make an adjustment only on the few occasions when single-sided printing is essential.
