This concept is entirely appealing and smart, especially during a recession-embedded holiday season: to alleviate that pesky voice that says “don’t buy it now, it’ll go on sale in two weeks,” there are websites that will actually e-mail you when specific items you’ve chosen goes on sale.
The sites, SavvyCircle.com and ShopStyle.com, make it easy for you to save on holiday party ensembles or gifts you just know would be perfect for your sister/girlfriend/mom/dog walker.
I, for example, would like to know when this Shoshanna dress goes on sale, both because I aspire to be Blair Waldorf and because 40% off retail just isn’t enough for me. To make it happen, simply search for the dress at ShopStyle.com, then mouse over the image and click “sale alert.” Enter your e-mail and voila, you’ll know the moment you can afford it.
SavvyCircle's model is slightly different – you sign up then choose items from their partner sites – but trust us, there are plenty of options.
Happy [smart] shopping!

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Here is another site that will help you find out when your favorite products go on sale:
http://www.zingsale.com
It’s a free service that tracks prices of products from online stores (like amazon) and sends you an email when the price drops. You can set a target price or be notified when it falls by a certain percentage. Might be a nice way to make sure you’re getting the best deals.