Share 'Easy ways to go green'

I am looking for ways to make choices for the wedding that are environmentally and social concious. It's not something I want to get on a soapbox about, but it is important to me. Also, I keep those ideals in mind during my day-to-day life, so why wouldn't I for our wedding? Share some of the ways you've found that you can "green" your wedding without a lot of cost of hassle -- here are a few of…