Ink Cartridge
It is estimated to take from 450 to 1000 years for a printer cartridge to break down in landfill.
When purchasing a printer, consider its print cartridge usage.
Consider if you really need that printout, or can read your documents on-screen.
Reduce the need to buy new ink cartridges by having them refilled by a reputable agent.
Use draft-mode printing to save ink where practical.
Cartridge World and Warehouse Stationery recycle ink cartridges where these have been purchased by their own customers.
Brandpost will recycle all cartridges sent to them. They will buy back some cartridges, so check their website.
Please keep from landfill wherever possible.