Saving money using the intenet

Hello everyone:

I just wanted to share with you three great websites for saving money. I just learned of them so I will be trying them, using them and letting everyone know the pro's and con's.
The sites are www.retailmeknot.com,www.promotionalcodes.com, and www.couponcabin.com. They seem very good. I did have the opportunity to use promotionalcodes.com and it worked well. I purchased a Vera Bradley purse for my mother-in-law for Christmas. I used a promotional code from this site and got 10% off my total order, and the purse was already on sale so... double savings. It worked well.

If you try the sites, please post any information that can help us use them better.

Do you have any internet tips on saving money?