It hits you as you watch sheet after sheet of inky paper spit out of your office printer: This can't be good for the environment. Work supplies and equipment definitely take a toll on the earth, but you can limit their effects by purchasing items that are energy-efficient, reusable and low in damaging chemicals. From recycled Post-its to solar calculators, you'll find 38,000 earth-friendly alternatives at The Green Office (www.thegreenoffice.com).