Road Warrior : Go early to NAIA today
Philippine Airlines advises passengers with flights today to be at the airport earlier than usual due to expected heavy traffic or issues going to the airport. This is because of a planned mass action by a PAL Union.
I think this should really apply to all flights, always be prepared, you never know if something unexpected happens and it holds you up from getting to the airport, checking-in or boarding.
There was a time when we were stuck in traffic 5 Km from the airport because there was a man on top of the bridge pillars. Things like these come out of the blue without warning so best be safe and go to the airport early.
Update 19-Sept-2011 : Apparently, the action by the Union did not significantly disrupt PAL services, PAL even had a high 85% on-time performance. Although, traffic around the airport was bad according to reports but contingency measures appear to have worked for PAL.