That's ironic. Well, recycling is one thing many think of, first off.
I only have enough trash to fill a regular size wal-mart bag about every two or three weeks. The rest I recycle, kept in the paper bags I get from Trader Joe's, and I might fill one a week at most. I have two large size monitors now - I thinking two cabs, of course - but wondering how I'm going to work that. I don't drive but maybe once a week or less, and otherwise ride my bike if it's less than 3-5 miles each way, if I can carry whatever in my bag, and weather permitting, which is most of the time here. For electricity, I have a single 26w flourescent bulb in each room, except for my 4 foot industrial flourescent fixture.
I only buy stuff if it's something I'm going to use, and I don't need or want a lot of extra stuff, so that keeps my spending down. I know, more spending keeps interest rates low, etc. Funny cycle, huh? 3D printing is on the way soon enough though.
And I keep my place very ordered and tidy. I count this - though when it exceeds a certain effort limit, it becomes prohibitive. This is what I mean by green. Not just recycle and use less, but less movement...I don't fidget with things, generally. Of course, when we can conjure things from imagination - and some purportedly can - things may be a bit different.