You are all set to go to Cabo San Lucas. You have sexy swimming attire, good beach reading, and your driver’s license and birth certificate. Well, good luck on traveling if you are one of the 73% of eligible Americans without a passport. (A true savionaire carries the 48-page frequent traveler passport.) Beginning today, all U.S. citizens, including children, traveling by air between the U.S. and Bermuda, Canada, the Caribbean, Central and South America, and Mexico must have a valid passport. Also, Canadian and Bermudian savionaires traveling to the States must show passports to enter the country.