“Purchase, use and throw”. This is what common in all. We like to purchase what attracts us. And after using, we don’t hesitate to throw it away unless it can prove out to be beneficial enough for further use. Take instance of inkjet cartridges. The common tendency was- use the cartridge in its spring and get rid of it when it becomes old. However, this scene has met a sea change after the introduction of used cartridges. Now, cartridges can be refilled and recycled once they run out of ink. Used cartridges contribute in reducing the environmental pollution. Add to this, they cost less than brand new cartridges. Refilling used cartridges is also trouble free. Anyone just by following a few necessary instructions can refill his used cartridge. There are companies that give discounts on their brand new cartridges in exchange of your old and used cartridges.  So, a used cartridge is beneficial for you in many ways.