Black Friday. The biggest shopping day of the year. Although we really don't need any more stuff, Black Friday can be the best way to get a ridiculously good deal on a flatscreen or computer or that sweet gps you've been eying but can't quite afford. And we haven't even gotten started on doorbusters. Are you prepared? (more) Even Apple is getting into the spirit, teasing an online sale plus free shipping. If you're planning to go whole hog and participate in the wee hours of the morning, check out these tips from Daddy-o Deals and a master spreadsheet of all sales Black Friday related courtesy of Fat Wallet. And don't forget your jacket!