Need to recycle your ink cartridges or toners? Recycle them at the store you purchased them from or directly with the manufacturer.
HP, Canon, and several other manufacturers provide return labels for used supplies free of charge.
HP: http://bit.ly/HPrecycles
Canon: http://bit.ly/CanonRecycles
Office supply stores like Staples have rewards programs for recycling used supplies. Contact the store directly for details.