<human>: What is the best way to: How can I save money on toner or ink cartridges?

OPTIONS:
- Take the old used cartridges to Costco, they'll refill them for 10 dollars.
- Take the old used cartridges to Costco, they'll dispose of them for 10 dollars.
<bot>: Take the old used cartridges to Costco, they'll refill them for 10 dollars.