You think you know how to find a good bargain? You've got nothing on the denizens of the message boards at FatWallet. These folks scoped out leaked ad circulars weeks in advance of Black Friday and went so far as to create a master Excel spreadsheet to break down the best bargains. If there's a can't-miss deal on the Web on Cyber Monday, you're sure to find it leading off FatWallet's Hot Deals forum.