I win!

Is there a contest to see how long you can use the same printer cartridge? If there is, I think I may have won. I bought my printer in late May/early June of 2003 and it came with a tri-color cartridge. I'm still using that same cartridge. I've put two black cartridges in it, but I'm still using the same color one. Needless to say, I don't print that much stuff, but I do use the printer.