I just saw that Walgreens is having a FREE ink cartridge filling tomorrow (Wednesday). So I will take one there, but my question is: Why do we buy new ink cartridges for alot of money if the empty ones can be refilled? I never knew empty ones could be refilled. I have HP so it is on the list of refillable ones. I feel terrible that I have been buying new ones all these years, and did not know they could be refilled. Has anyone refilling theirs had any problems? Thank you.
Una