PocketMod - a clever product and folding scheme for printing 8 pages on one side of a page and folding it into a small booklet (2 3/4" x 4 1/4").
"PocketMod: The Free Disposable Personal Organizer"
Web site includes flash demo to print simple sample PocketMods.
Free tool to print PDFs in PocketMod format
Blogs on the product:
Compare to the PersonalAnalogDevice. See also: IsAnythingBetterThanPaper