Wilko diy ink refill packs ... worked really well and reduce landfill.

So ... if you own a printer you know how crazy expensive replacement inks are. My HP printer recently ran out of warranty and ink ...

I heard that Wilco sell a refill kit for just £3 and it's 100% guaranteed (link).

It is a little fiddly, a little messy and the instructions are not great ... but it totally worked and there's enough ink to refill at least 3-4 times.

There is a youtube vid that demos the process with a different brand (link).

I would advise against it if you are still under warranty.