General Motors lays off 15% of its employees and scales back production. David Kretzmann analyzes why GM had to make these tough decisions. Black Friday sets a new record for online sales. We discuss why the holiday quarter is so crucial to some retailers. Plus, David shares highlights from attending MJBizCon in Las Vegas.   Go to www.Harrys.com/Fool to redeem your offer and let them know we sent you to help support the show!