Black Friday is coming up, and in San Francisco, it's a damn madhouse. I went once and got so frustrated at the crowds that I wonder if it's even worth it this year. Thus, some questions: 1. Is it better to just wait for after Christmas sales? 2. Anyone know who puts on worthwhile Black Friday sales? 3. Anyone know of "early Black Friday sales?" I've heard of stores putting on Black Friday sales even the week before Thanksgiving.