-- First off - do not print everything save the website or document as you favourite and refer to it (my husband loved to do this so I hid a paper on him - which prompted our lesson)
-- If possible use recycled paper
-- Select to print in "draft mode" this will use less ink. To do this for most printers go to print settings and select draft. Using less ink will save you money make the 'plastic' cartridges last longer so you do not need to discard of them. When they are empty look at using the ink you can refill these with ( I tried it once and was not really happy with my results) otherwise take it back to the store were you purchase your ink from and they will recycle.
-- Print on both sides of the paper. With some printers this is an easy option. You can select it on the printer settings (most offices are equipped with this sort of printer.) Our home printer does not have this option so I find out how many pages I will be printing. In my husbands case as mentioned above 17 pages so then I only insert 1/2 the amount of pages in the printer 9 pages for this example and then print. The computer/printer will alert you that you are then out of paper. I take the paper and turn it around and run it through the printer so that it prints on the other side. Okay, so your page order is a little out of the ordinary but does that really matter in the "green" scheme of things?? Some people may disapprove of running printed paper back through the printer as it supposedly is not good for the printer. I have been doing this for sometime now and see no negative effects on my printer.
-- Also, reuse paper that has been printed o one side only.
That concludes our green printing lesson...quite a simple change to implement.