5 Habits for Greener Computing

3. Tweak Your Power Settings

If you're like me, your computer is on all day, but you don't work on it continuously. Turning it on and off isn't an option, but a quick trip to the Windows Power Options control panel can shave your usage down a bit. There, you can set your monitor and hard drives to power down when you haven't been using the PC for a while. It takes only a second for them to power up again, so you can use that time to get comfortable in your chair.

Most important, you can set the computer itself to go to sleep or to hibernate after a certain period of inactivity. Sleep mode is a low-power mode, and as with the hard disks and monitor, it has everything up and running in just a few moments when you want to start working again. Hibernation, in contrast, switches the computer off but saves your current work environment first. As you'd expect, waking the computer up from hibernation takes a bit longer.

Tip: Windows XP SP2 sometimes has a problem making hibernation work when your PC has more than 1GB of RAM--oddly, it generates an error message saying that you don't have enough resources. A quick visit to Microsoft's Knowledge Base provides a patch that fixes it right up.

By the way, these tips also apply to your portable devices. MP3 players, cell phones, PDAs, and handheld game machines have settings for powering down or adjusting their screens, Bluetooth, or Wi-Fi settings. Switching off what you don't need (or even just turning down the screen brightness) extends battery life, which means less recharging.

4. Turn It Off!

Printers, scanners, speakers, monitors--surrounding your computer is a multitude of peripherals that will happily keep on sucking power even when the PC is switched off. It doesn't seem like much, but even an idle printer is a drain on your utility bill. The simple rule of thumb is to turn anything off when you're not using it. That includes turning off your monitor (rather than letting it sit in low-power mode when the computer is off), and turning on your printer only when you actually have something to print.

Smart Strip
The trouble is that some devices have hard-to-reach power buttons--or worse, no power buttons at all. Power strips such as the Smart Strip can help; the Smart Strip, for example, switches off devices plugged into specific outlets when the computer is switched off.

Also, don't forget to unplug your phone, camera, or any other rechargeable device as soon as it's finished juicing up--even though the batteries are smart enough to stop drawing power when they're full, electricity is still flowing through the cable. Some Nokia phones will even nag you to unplug them when they're done.

5. Find a New Home for Your Old Tech

So you're getting ready to upgrade to a new computer, but you've discovered that you have no room in the closet for the old one because it's already filled with a decade's worth of obsolete technology. What to do? One solution is to recycle your old gadgets by bringing them somewhere where they'll be disposed of properly. You can find a list of services in your area by checking out Earth 911's Web site, which tells you where to dispose of everything from batteries to toner cartridges to the 386 you've had knocking around since the first George Bush was in office.

Better still, you can Freecycle your old equipment. Freecycle is a network of local mailing lists (there are over 4000 globally, from Andorra to the Virgin Islands) for people who want to give stuff away or are looking for free stuff. Just post a message about what you want to give, and someone will probably offer to take it off your hands--and isn't finding your old computer a new home better than just having it dismantled?

Whichever method you choose, don't forget to wipe your hard drive clean first. Use a utility such as File Shredder to delete any sensitive data from your hard disk before it slips out the door.

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