Here's how to plan the perfect trip to Catalina Island.Boats in the harbor of Avalon Bay, Catalina Island.Credit: WirestockGetty ImagesVisiting (or living in) Los Angeles certainly has its perks, especially if you want to visit world-class museums, shop 'til you drop on Rodeo Drive, and maybe even spot a Hollywood star in one of the city's hot spots. Of course, the vibrant, sprawling metropolis is also notorious for traffic, a force to be reckon…