Unplug appliances when you're not using them. Or, use a "smart" power strip that senses when appliances are off and cuts "phantom" or "vampire" energy use.
Wash clothes in cold water whenever possible. As much as 85 percent of the energy used to machine-wash clothes goes to heating the water.
Use a drying rack or clothesline to save the energy otherwise used during machine drying.
Save water to save money.
Take shorter showers to reduce water use. This will lower your water and heating bills too.
Install a low-flow showerhead. They don't cost much, and the water and energy savings can quickly pay back your investment.
Make sure you have a faucet aerator on each faucet. These inexpensive appliances conserve heat and water, while keeping water pressure high.
Walk or bike to work. This saves on gas and parking costs while improving your cardiovascular health and reducing your risk of obesity.
Consider telecommuting if you live far from your work. Or move closer. Even if this means paying more rent, it could save you money in the long term.
Lobby your local government to increase spending on sidewalks and bike lanes. With little cost, these improvements can pay huge dividends in bettering your health and reducing traffic.
Eat smart.
If you eat meat, add one meatless meal a week. Meat costs a lot at the store-and it's even more expensive when you consider the related environmental and health costs.
Go online to find new or gently used secondhand products. Whether you've just moved or are looking to redecorate, consider a service like craigslist or FreeSharing to track down furniture, appliances, and other items cheaply or for free.
Check out garage sales, thrift stores, and consignment shops for clothing and other everyday items.
When making purchases, make sure you know what's "Good Stuff" and what isn't.
Borrow from libraries instead of buying personal books and movies. This saves money, not to mention the ink and paper that goes into printing new books.
Share power tools and other appliances. Get to know your neighbors while cutting down on the number of things cluttering your closet or garage.
Buy smart.
Buy in bulk. Purchasing food from bulk bins can save money and packaging.
Wear clothes that don't need to be dry-cleaned. This saves money and cuts down on toxic chemical use.
Invest in high-quality, long-lasting products. You might pay more now, but you'll be happy when you don't have to replace items as frequently (and this means less waste!).
Keep electronics out of the trash.
Keep your cell phones, computers, and other electronics as long as possible.
Donate or recycle them responsibly when the time comes. E-waste contains mercury and other toxics and is a growing environmental problem.