My first thought was to install solar power in my house, especially since the back of my house faces nearly due south... I did a lot of research and it turns out this is still pretty expensive.
So, I actually did start by looking for ways to save energy inside the house. I am in the process of doing a room by room energy "inventory" looking for ways to save. The most obvious and immediate ones are: 1) Turning off electrical appliances when they aren't in use (costs nothing to do!!), and 2) Replacing incandescent bulbs with Compact Florescent bulbs.
Now this (going to CFl bulbs) does cost a bit, but there are several benefits. First, you are using less energy ( a lot less, per bulb to get equal brightness ). Second, since you are using less energy, your electric bill will be less. Third, these bulbs are supposed to last a LOT longer than the ones they are replacing (some even come with a warranty -- remember to save those receipts!!). A down-side is that the color and spectrum of light you get may not be the same as what you were getting with incandescents. But the most major down-side is that all of the CFl's I've seen seem to be packaged in excessive plastics -- just like everything else these days.
I still need to figure out what I'm going to do with the Honda Pilot... although, on the positive side, where I used to commute an hour and a half each way, I now walk down to my basement and telecommute. A lot less stress, and a lot less pollution!