Saving energy is only a part of the on-going Green Cup Challenge. You can also make a difference by cutting down on your paper consumption. (After all, it does take energy to turn trees into pulp into paper, and transport all that to the various places of processing.)
Our new copier has a double-side function. We made a cheat sheet for you, and posted it on the cork board above the copier. The next time you need to make a copy, try going double-sided!