If you are serious about couponing, one of the best investments you can make is a laser printer. You will more than make up the cost of the printer in one year by the saving in ink cartridges.
Office Max has the Brother® HL-2240 Monochrome Laser Printer for $49.99. Find a small filler item to get to $50 and it will ship for FREE.
This printer has rave reviews for KCM readers and I think a few of them have even figured out how to make the ink cartridges last longer.