Here is a creative idea in increasing environmental awareness. Ecofont was developed by Spranq and uses 20% less ink. It is meant to be used in regular sized reading material.
The company co-founder Gerjon Zomer concedes that the font isn't beautiful, but it could be adequate for personal use or for internal use at a company.
Beauty is in the eye of the beholder. I think a perception can be changed knowing the end result is fewer used ink cartridges and toner. What do you think? Download it for free, here.