NEW YORK (CNN) -- There's no need to get up at the crack of dawn to battle bargain-thirsty shoppers on Black Friday. But you can still score the best deals while you're still wearing bunny slippers.

If you want to score a great deal, check out these comparison-shopping sites:

Dealio.com. This site will let you compare prices on over 30 million products offered by over 100,000 merchants. Type in what you're looking for, like cuff links or a navigation device, and you'll get a listing of how much it costs at various retailers.

Pricegrabber.com will also help you compare prices and you can get set price alerts for yourself. Just set the price you want to pay for a product and once it reaches that prices, you'll be sent an e-mail alert.

And finally, check out pricespider.com. Not only can you compare prices and get e-mail alerts when the price drops, but you can also compare the current price to what was charged over the past six months.

Plenty of sites offer coupon codes (and printable coupons) for online and brick-and-mortar retailers.

At Retailmenot.com you'll find 400-thousand coupon codes and printable coupons.

CouponSherpa.com is another site where you can browse coupons by retailers.

And who doesn't like free shipping?Freeshipping.org lists free coupons for stores like Bed Bath & Beyond, Target and eBay.

And of course, we're all trying to keep our holiday spending in check. Edivvy.com lets a group of people can contribute online toward the gift you choose.

And just a few words of caution -- if you are buying online, don't go to your local coffee shop to use the Wifi and don't use a public computer. You'll be vulnerable to hackers. Make sure you don't click on pop up ads ... they may be bogus. And use a credit card -- not a debit card -- for your purchases.

-- CNN's Jen Haley contributed to this article.