Be sure that your computer settings optimize energy saving and be sure to shutdown your computer completely when you leave for the day -- do not put them on "standby" settings.
Unplug any electronics that you can plug back in when needed -- printers, scanners, etc.
Look for Energy Star certified products when purchasing equipment.
Plug all electronics into a single power strip that you can turn off with one switch easily.
Purchase more efficient LED or Fluorescent bulbs rather than incandescent, be sure to turn off the lights when you are not in the room and use natural light when possible!
Green your commute! You may do so through car pooling, biking, walking, or public transportation. You may also consider purchasing a more energy efficient vehicle that will also save you money on gas.
Paper & Printing
Do not print documents unless necessary, keep digital files to reference rather than wasting paper.
Set your printer's default to double sided and try to stick with recycled, unbleached paper.
Recycle or refill your ink cartridges!
Use air dryers rather than paper towels in the bathroom.
When possible, print in black and white or even in draft mode. It will print in a lighter shade but you will still be able to read it.
Equipment
Use office supplies made of recycled materials. Some organizations include Ahrend, Auspen, EcoWork, ForestChoice, and The Green Office.
Buy used office furniture, electronics, etc.
Recycle old electronics!
Look for quality! Buy high quality equipment that will last and prevent the need for replacement in the near future.
Miscellaneous
Practice green lunch! Bring your own lunch to work in a reusable container, use reusable utensils, and eat locally grown foods. Switch to Fair Trade and organic coffee.
Make it a habit to use nontoxic cleaning products.
Bring plants into your office, they clean the air and absorb indoor air pollution.
Buy furniture, carpeting, and paint that are free of volatile organic compounds (VOCs).
Consider office sharing that will save utilities, equipment, etc.
