Here's a simple way to reduce your daily waste stream: use reusable coffee filters! You can also use filterless systems, permanent reusable filters, or a french press, but some people prefer the taste of coffee that has been filtered. The great news...you can make one in less than 10 minutes with minimal sewing experience (and save some trees while you're at it)!
How to make a reusable coffee filter from unbleached cotton muslin - I've done this, and it takes a few uses for it to work well. It's really easy though, and you could get quite a few of these out of a yard of muslin!