Consider what you are bringing into your business, how to operate with less material goods, and what you do when you're done with it.
Do you need it? What it made of? How is it packaged? Where is it made? Is it fixable?
Organics recycling has become accessible and affordable. Familiarize your business with specialty programs, and use resources such as BizRecycling.
Go paperless, be thoughtful at lunch-time, check out what's in your dumpster, create employee training around sustainable practices.