Jimmy Buffett left us at at the start of a long Labor Day weekend, as good a time as any for the Bard of Beach Bums to settle his tab. Very few people are so readily identified in the public mind with Florida. Buffett is and always will be, and he worked very hard to maintain the cultivated image of a carefree roamer with sand between his toes. The tropical shirt. The chilled Margarita. The .