You can get really cheap refill cartridges on Amazon. I paid maybe 8 bucks for C Y M and x3 B. They're not 'official' but they work just fine, in my case bette

You can get really cheap refill cartridges on Amazon. I paid maybe 8 bucks for C Y M and x3 B. They're not 'official' but they work just fine, in my case better even than the normal ones.