Choose your hotel wisely. Pick accommodations that are close to the places you want to visit to ensure there will be time to see them all.
Understand the seasons of London travel. Go during the main travel season, which runs from late spring to early fall and is popular because of its lovely weather. Go during rainy times, from late fall to early spring, only if there is no other choice.
Gear up and buy the standard guidebook, "London A-Z." Take the guidebook wherever you go. It includes maps and other handy sightseeing information.
Dress comfortably for lots of walking. You should dress in long pants or a skirt, if you are planning to go inside churches. Call before visiting churches and ask about the dress code if you are in doubt.
See the biggest sights first to ensure you don't miss them. Plan on seeing the Tower of London, Westminster Abbey, Buckingham Palace, the London Zoo, Piccadilly Circus and the London Eye.
Plan to wait in lines at the major attractions. Call ahead before going to inquire if reserve tickets are available.
Have plenty of change on hand for the subway, or tube as Londoner's call it. Take cash for cabs. Ride a double-decker bus if you have the time. The subway and bus schedules are found in the "London A-Z" guidebook.
