On my way back from SFO last night, I stopped in SEA to see my partner off on the QX flight to YYC. As we were leaving the AS Board Room for the gate, I heard an announcement from a QX agent that went like this "if there are any Portland pax on later flights this evening whom would like to get home earlier and have not checked luggage, please see me here at Gate C2X". Wow! An airline that understands that it doesn't take that much of an effort to go a long way. Only 4 people approached the agent, however, I bet they were appreciative. AC, are you listening?