I'm a note-taker.

As I sit in front of the computer, whether I'm playing video games or preparing a blog post, I always have paper and pen ready to take notes. Normally I re-use paper that I've already printed something out on. I just flip it over and use the back as a scratch pad.

But the folks at Xerox have come up with an even better solution. Paper that erases itself after 24 hours.

A team of experts from the same company that gave us the laser printer and the computer mouse is making another major change to the workplace with reusable paper which erases itself after 24 hours so it can be used again. The sheets are coated with special chemicals which turn white on their own or by being run through a special printer, meaning text will disappear and allow the paper to be used again.

Designers at Xerox believe that their reusable paper could save the world's offices at least seven trillion pages a year which would otherwise be printed once and then thrown away. There is one drawback: it is not capable of erasing pen doodles or unfolding paper aeroplanes.

Ok, so it would be cool if it could erase pen markings but it can't, so in one sense there's a little bit of a drawback for hand-writers like me. It's also going to suck for the idiot who writes disparaging remarks about his coworkers or boss thinking it'll disappear by morning. On the other hand, though, I can easily see how something like this can reduce wasted paper in an office environment.

There is a downside to this, however. Politicians might actually be telling the truth when they say documents have suddenly just disappeared.

In commemoration of the fifth anniversary of the national do not call registry, ForestEthics has launched a new project to reduce paper waste called Do Not Mail. The goal of the campaign is to get Congress to pass a Do Not Mail registry law similar to the Do Not Call list.

Sadly, junk mail distributed in the United States currently accounts for 30% of all the mail delivered in the world, though 44% of it goes to landfills unopened. That's a lot of wasted trees.

A few notable names who have already signed onto the project are Adrian Grenier, Darryl Hannah, and Alicia Silverstone, among others. It's a project that almost everyone can agree on, if the success of sites like GreenDimes are any indication.

If you want to join them, sign the petition and then let your friends and family know about the project. Then use their online tool to opt-out of junk mail.