It's never easy being a commuter across Puget Sound. Vessels break, weather intrudes and boats overload. But it just got a little bit easier. Washington State Ferries has introduced a new service to help commuters plan their trips, in spite of breakdowns or weather problems. The new service, email notification, sends electronic messages to customers signed up for a specific route or routes. The service is working for many ferry commuters. More than 900 have signed up, even though the new system is still in the testing mode. "As a commuter, I get as frustrated as anyone when there's a disruption in service, but things do happen," writes Bremerton commuter Edward Shanahan.