h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Sitting here at work in a college in the South Coast, I am hit by the needless waste of paper. The students (and an awful lot of the staff!!) do not seem capable of using the print preview button in front of them and then find that the work they have done is not how they want it until AFTER they have printed out 20+ pages. Then they come to me and say this looks all wrong. I have to fix the pages and then they print out yet another 20+ pages, flinging the first pile onto a desk and thinking no more about it. They would be the first to complain if they were charged for all the pages not used but would soon learn not to use the print preview. The toner cartridges and paper do not come cheap and are not grown in the college greehouses for free as they seem think but everytime I say use the print preview it goes on one ear and out the other.