Office Max has a line of green products and here are some examples.
-Instead of buying a wall calendar or a paper notepad, consider buying a reusable calendar board or a wall dry erase board like the ones below.
-Try to purchase products made from recycled materials, like the correction tape below.
-Try buying products made of renewable resources like the pen below, which majority of components are made from corn, which is biodegradable. It has a 22% lower carbon footprint per pen versus conventional plastic pens.