I love books, and I’ve had fun making my own from time to time. If you have a duplexing printer, or if you can turn stacks of paper over, you can create quick booklets out of PDFs. Not only does it save paper, but it’s also an easy way of carrying long-ish documents with you. Throw on a cover made from a cereal box, and you’ve got a nice little book that’s much easier on the eyes than your computer monitory.
If you have a Mac, just download this free Create Booklet service. It will add a “Create Booklet” option to your print window.
For Windows, or if you prefer web-based options, use the free website BookletCreator.com. This online service provides a few more options. For example, it will let you set a maximize number of pages for your booklets, in case you are printing a very long document and need to break it up into smaller pieces.