In fact it is quite a profit for you as well as your environment if you switched
to getting your own toner instead of a new cartridge every time the print gets over. There are some cartridges that are not reusable. If you have one of those then make sure you drop it for recycling next time you go to the store. And when you get a new cartridge make sure that it is one that is reusable. That would mean, next time your ink gets over you can simply get toner that is compatible to your printer and refill your cartridge. That is exactly what is meant by making smart decisions.