For those of you who enjoy a cup of joe with your morning paper, the RITI Coffee printer offers an ingenious way to green your morning ritual: by turning your old coffee grounds into a sustainable source of ink for your printer! One of fifty top entries in this year’s Greener Gadgets Competition, the RITI printer takes the leftover grounds from your morning roast and plugs them into an ink cartridge to create an eco-friendly source of ink. Who would have ever guessed coffee stains could be be so useful!