Do you have gently used electronics laying around your house that you could bear to part with? Gazelle.com is one site that gives you the opportunity to turn your e-trash into cash.

You simply log onto Gazelle and enter the make and model of your electronics -- everything from cell phones, mp3 players, computers and cameras to GPS systems and gaming consoles. The service then makes you an offer.

If you accept the offer, Gazelle sends you a box to ship your item(s) in and even pays for the postage. It typically takes about a week before you're paid once they receive your package.

Many major retailers are now also partnering with Gazelle. That means you can log onto the websites of Costco Wholesale, Wal-Mart and Sears to do your transaction. If you go that route, payment is remitted in store gift cards.