After hearing rave reviews from several people, I've just tried refilling the ink cartridges on my HP printer. I've heard it can shorten the life of your printer but I wasn't worried because my old DeskJet is practically an antique.
I followed all the directions and tried printing. I'm not so impressed with the results so far, although it is improving. Here's the main thing I've discovered. Although the instructions say HP cartridges don't need to have the holes you refill in resealed, mine seems to leak profusely if you don't. A few tiny pieces of electrical tape solved this problem.
Apparently it can take some time for the foam inside the cartridge to soak up the ink. The solution to this is just to let it sit. So, I'm going to sit on this project until tomorrow morning and then give my full report.
Will this be a wonderful money saving thing or should I just have gone to 123inkjets.com?