This is a very good news that Walmart is guaranteeing customers that they are doing a price match with competitors ads of Black Friday 2008. Best way to go about utilizing this to fullest extent is to hold on to all competitors printer ads and just shop at Walmart.
It all depends on locating the ad-match items in an always un-orderly arranged items of Walmarts is a big challenge for shoppers.
Here is Ad Match info from their website :
In addition to its Black Friday specials, Walmart is guaranteeing customers the best prices with its Ad Match program, whereby its stores will match the price of any local competitor’s printed ad for an identical product.