20 ways to save energy

Here's how you can save energy and cut your energy bills with ConsumerReports.org's guide to reducing energy costs:

1. Wash clothes in cold water. You might guess that most of the energy used by a washing machine goes into vigorously swishing the clothes around. In fact, about 90 percent of it is spent elsewhere, heating the water for the load. You can save substantially by washing and rinsing at cooler temperatures. Warm water helps the suds to get at the dirt, but cold-water detergents will work effectively for just about everything in the hamper.

2. Hang it up. Clotheslines aren't just a bit of backyard nostalgia. They really work, given a stretch of decent weather. You spare the energy a dryer would use, and your clothes will smell as fresh as all outdoors without the perfumes in fabric softeners and dryer sheets. You'll also get more useful life out of clothes dried on indoor or outdoor clotheslines--after all, dryer lint is nothing but your wardrobe in the process of wearing out.

3. Don't overdry your laundry. Clothes will need less ironing and hold up better if you remove them from the dryer while they're still just a bit damp. If you are in the market for a dryer, look for one with a moisture sensor; it will be less likely than thermostat-equipped models to run too long.

4. Let the dishwasher do the work. Don't bother prerinsing dishes with the idea that your dishwasher will work less hard. Consumer Reports has found that this added step can waste 20 gallons of heated water a day. All you need to do is scrape off leftover food. Enzyme-based detergents will help make sure the dishes emerge spotless.

5. Put your PC to sleep. Keep your computer and its monitor in sleep mode rather than leaving them on around the clock. You stand to use 80 percent less electricity, which over the course of a year could have the effect of cutting CO2 emissions by up to 1,250 pounds, according to EPA estimates.