Take a look at the bottom of this post. Or any post. And you'll see a new button has been added.
Clicking this button will give you an option for a printer-friendly version of that post or a PDF version of that post. Either makes it nice for printing and the PDF option lets you save it for future reading.
I learned about this terrific little addition to a blog when I saw it on The Pursuit of Technology Integration Happiness blog. My first reaction....what a great idea!!
If you would like one for your blog, just drop by printfriendly and follow their simple directions.