Sometimes, you discover some of the best things simply by stumbling onto them by accident. This was this case when I played around with my old, dried up, so-called empty printer ink cartridges just for the fun of it before tossing them in the garbage. I had nothing to lose and was going to buy new ones the next day anyway. You already know the printer ink gets dried up on the heads, especially if you haven't used the printer in awhile. You also know how to use a damp cloth and clean them and the compartments where the cartridges sit. There are tons of tutorials on that topic. Eventually, cleaning doesn't help and you will be printing out blank pages. You think it's time to run over to the office supply store and buy new ones. Maybe not. First of all, it helps to understand what is inside of that cartridge. Inside of the cartridge there is a small sponge that is soaked with concentrated ink. This is the kicker. Did you know that you only use a very small percentage of the ink inside of the cartridge before it appears to be empty? Most cartridges are usually water soluble. The cartridges run out of water only. There is still plenty of color pigment remaining in the cartridge. *Note: this exercise is not for printers using toner. Try this: 1. Clean the cartridge heads and the compartment where they sit in with a damp cloth or quality paper towel. Google how to do this simple task properly. 2. Dip the heads in lukewarm water for about a minute. Wipe clean and repeat a couple of times. 3. Turn cartridges upside down and drizzle a few drops of water on top of the cartridge where the ink comes out. Prop them up and let them sit in this position for awhile. Repeat about 3 times. Our goal is to simple get the little sponge inside to soak up some water. You don't want to get too much water in there. 3 ml should be enough water to put back in the cartridge. The above steps worked great for me. My all-in-one printer is now spitting out quality prints - just like new. Another trick: I haven't tried this one but plan to - just for the heck of it. Use a syringe to fill your cartridges with food color instead of ink. You have to use the type of professional food color that bakeries use such as the Wilton brand because it has more pigment in it. You could also use pigment from tubes of watercolor. I think this small tutorial will help people who are on a tight budget in your endeavor to make money online. It should also help people like myself who do not have time to stop working to drive over to circuit City to buy cartridges. And yes, of course I will eventually buy new cartridges and you will too.