Something I spotted on Springwise recently was a new font designed to save ink. It doesn’t look very good at the size in the picture, but the smaller it is, the better it looks. The Ecofont is created by omitting parts of the letter so it uses less ink when printing each character.
The makers say that the results vary depending on your software and the quality of your screen but it works best in OpenOffice, AppleWorks and MS Office 2007. And it also depends on the quality of your printer, supposedly a laser printer will give the best results.
The Ecofont is based on the Vera Sans, an Open Source letter, and is available for Windows, Mac OSX and Linux.