Check out this pretty funny advertisement for solar power.
Solar technology has improved a lot lately. It's now a money saving proposition for a lot of people. Some don't know this, but it's not necessary to have some sort of energy storage, like batteries, in order to run a solar power system. In most states, such as Michigan, what happens is when your solar power system exceeds your usage the power you generate is fed to the grid. Your meter will actually spin in reverse. At night you would have to use the electricity generated by the power plant, but on net you could end up paying nothing for electricity. This works out really well for people that aren't at home during the day. Or for people that travel. For a lot of people a solar installation will pay for itself in like 15 years. Subsequently you will still have these panels that will continue to provide free electricity for a long time.
Here's another easy way to save money and help the environment. A lot of people don't know that some of your electronics can end up drawing a lot of power even when it isn't running. A friend told me his audio receiver pulls 100W even when it is off (I plan to measure how much mine pulls using a Kill-A-Watt). At 10 cents per kilowatt hour that's like $80 a year just to have my receiver plugged in and not running. You don't have to be a tree hugger to make a little effort on that one. I'm going to flip the power strip off from now on when I'm not using it.
That's also true for your computer and peripherals. Feel your modem even when the computer is off. Mine gets pretty hot. The wireless router is drawing power. At night if the computer is off, why not shut these down?
Another option for me is riding my bike to work. It's 9 miles to work for me. Not too far. Fortunately there's a shower in the building. I figure I save a gallon of gas every time I bike to work and back home.
Some other great ideas for reducing your energy consumption are here. Even if you think all scientists are involved in some sort of weird global warming conspiracy, you can still benefit from energy conservation.