Printing on both sides of the page
Most if not all of the laser printers have a duplex option to print on both sides of the page. It should be on the menu of Options in your print dialogue box (under Layout on my Mac OSX). They also have a draft option that uses less toner and works just fine for most purposes. (EconoMode - Save Toner under Image Quality on my particular menu.) On a Mac, you should be able to save these two choices as a Preset option that you can choose off a menu in one step if you want to, rather than having to go through setting the choices up again every time. In Windows, you need to select alternate printer options each time you print.