The semi annual All Clad factory sale is Friday, Dec. 6th and Saturday Dec. 7th starting at 9:00AM at Ladbroke at the Meadows in Meadowlands, PA. This is a REAL factory sale having been literally held in the factory for the first several years. Traditionally the line has been 300 to 500 people long when the sale opens. While you can also buy some discounted All Clad off of the web for anyone who is near this sale (many people including myself have driven several hundred miles for it) it is the absolute cheapest way to buy All Clad. As an example several years ago I bought over $2,000 worth of cookware for approximately $700. This included a 16 quart stockpot that Bloomingdale's was fair trading at $400. I paid $129 at All Clad. At the sale I went to several years ago they had every single piece they made included in the sale with some (such as the stock pot) at incredible markdowns. All Clad's phone number is 724-837-8766.
There are also two other locations that have limited inventory but the main one at Ladbroke is the one to go to.