Here’s a quick plug for a site that is useful to me every year during this time. It’s bfads.net. They’ve got all the black friday ads from the top retailers around. It’s useful because you can see the deals going around and make a list of what you’re buying before you go shopping.
If you’re brave enough to shop with the masses on fri-sun after thanksgiving then it’s best to have a well thought out plan of where you’re going and what you’re buying beforehand. Nothing’s worse than window shopping on black friday.
Personally around this time I opt to buy a flat screen hdtv or a laptop because those are always discounted several hundred dollars.
If you don’t want to risk being trampled you can also shop online but the deals won’t be as food as some of those doorbreaker / limited quantities specials.