SAVVY Travel farther and more simply, get closer to the places and people you want to visit. FRESH The most up-to-date guide, only Let's Go has on-the-road researchers who reassess every listing, every year. HONEST Be a traveler, not a tourist: avoid tourist traps, discover local secrets, and create your own adventure. THOROUGH Includes transportation info, Internet access, nightlife options, and a chapter for gay and lesbian travelers. FROM RAVES to royals, an insider's guide to the world's coolest city. Includes daytrips around southern England and to Paris. DOWN a pint of ale at Dickens's favorite pub for £2. BARGAIN for vintage clothing at the Portobello Road Market for free. SPORT a silly hat at Ascot and wave to the queen for £5.