I was trying for 10, but couldn't come up with others, please chime in if you have any suggestions;
In no particular order:
- Proofread or at least double check the document before printing!
- Print double sided (duh!)
- Check to see if you can print in a draft form, many times this is just as good as higher quality
- Don't make extra copies unless needed
- Email the document, if you don't want people to be able to edit it, turn it into a pdf
- If you are using a color printer, see if your printer has the option to dectect color. If it does, use it on your color documents that are mixed with black and white pages.
- If your last page of printing is short, try adjusting the format or margins to condense the document