PC World – Some people call me cheap, even stingy. I’d rather be known as thrifty. That’s why I won’t buy the original (OEM) printer cartridges for my HP Photosmart e-All-In-One inkjet MFP. As a serial refiller, my quest is to find good third-party options–including remanufacturers, refill services, and do-it-yourself refill kits–and tell you whether the savings are worth the trouble.