When buying office supplies, consider buying from Staples. With over 950 store locations, it should not be too hard. They have developed a Recycling Easy Rewards program and they already embrace an Earth Month campaign.
For instance, Easy Rewards members earn 1,000 points when recycling an eligible battery or technology product in one calendar month. According to the Staples website, Staples accepts a wide range of electronic items, ink and toner cartridges, SodaStream® CO2 cylinders, single-use, rechargeable batteries, phone and tablet cases, pens and markers, and more for free daily recycling. No purchase is necessary to recycle in-store, and we accept all brands of items regardless of where they were purchased.
If you can’t make it into a physical store, they have a specific box for specific electronics. Ship the box back to them, and they will take care of the proper disposal of your devices for around $30 to $60.