Turn off the faucet. Close the door or window. Shutting your curtains can help, too. Pay attention to what you use around the house. I'll bet you find lots of ways to make your house a more environmentally friendly place.
Recycling is one way to reduce trash, but an even better way is to use less stuff.
Don't get something unless you're sure to use it. That way, it won't be thrown away later. The trees will shade and help cool your house in the summer, but let the sun through and warm your house in the winter. In a typical home, when you add up all the drafty leaks and cracks you wind up with a hole the size of a window. Lighting accounts for 20 percent to 25 percent of all electricity sold in the United States.