You can always make more copies later. Use email to send electronic copies rather than hard copies whenever possible. Think before you print that email. Use the telephone if a verbal message will suffice. Make reports and data available electronically.
Scrap paper works well for phone messages or routing slips.
Reduce envelope use. Use pink, reusable, interoffice routing envelopes. Use the smallest envelope possible. Reuse envelopes whenever possible, even when sending beyond the office system. Reuse packing materials .