GreenPrint Home Premium for Windows and Mac is priced at $19, and a tree is planted with every purchase.

3.

For documents that you'd print only so as to have them with you on the go, another option is software that "prints" it to your iPhone or iPad instead. Houdah Software's is a package that does just that, as I recently noted in my look at . The app costs $1.99 on iTunes, and the for your Mac or Windows PC is free. I'm hoping Houdah will develop an Android version in the near future, not to mention software for Linux PCs.

4. Efficient Printers

This is not to say that you should run out and buy a brand-new printer if you don't already need one, but tend to be a lot more efficient than older ones, particularly if they carry a certification such as EnergyStar. Because they tend to run cooler and last longer, such devices could even help you save on air conditioning and maintenance as well.