Is there a website that searches numerous weekly sale ads

Miscellaneous and Personal Stuff I Must Share
1

On black friday there are websites that collect the sale ads from dozens of stores, then lets you search them all for certain sales or bargains. Are there sites that do this with regular weekly sale ads?

The only one I can find is spoofee, but I am more looking for grocery deals.

2

You have to register with an email address. She provides information not just on weekly sales, but also on coupons (from the web, sunday papers, etc.), and how you can combine the the two for the best deals.

It seems like it would be pretty helpful, but I haven’t really used it.