Originally Posted by mineistaken

I started buying 100ml ink bottles (I only print black and white documents) from ebay. Then I refil cartridge using a syringe. Saves money (obviously) and time (no need to go and look for cartridges or refilling companies etc).

Tip if you do so - do it little by little (slowly), otherwise your cartridge will start leaking and you will get messy. That is because of air inside the cartridge, you add ink and that air "pushes out" some ink (if you inject quickly).