You've already paid an arm and a leg on ink refills for your printer, so get into some smart printing habits to save money on ink and paper. Wherever possible, preview your document before you print, and shrink the selection down to fewer pages, or print only the pages that you need in the document. Set your printer to the lowest quality (draft mode) when possible, and opt for double-sided printing or print several pages per physical page (when you're printing.out PowerPoint slides, for example). Before printing Web pages, use the Aardvark Firefox extension to delete big, colourful advertisements and other unwanted, space-wasting elements. When you don't really need a hard copy, opt to print to a PDF document instead. Mac users can do that by default; Windows users need to download a free utility such as CutePDF to print any document as a PDF file.