Erasable paper

The Paper that Self-Erases Within 24-Hours
Recycling's better than sending good paper to the landfill. Even better is not printing in the first place. But there's still a lot of stuff that comes out of printers and some studies show that more than 40% gets discarded on the day it was produced (and a lot of the rest gets discarded not much later, or gets stuffed in a box and is never looked at again).

The researchers at XEROX looked at that problem and came up with a paper that self-erases within 24 hours and can then be re-used.