Firstly the Dollar is worth much less than the Pound so if you believe you would be poor the way you understood it then you will have no hope with the reality.
The remainder is an answer someone else gave to a similar question, I hope you find it useful.
We Brits have peculiar words for many things, print out this handy guide.
Money is referred to as "goolies" in slang, so you should for instance say "I'd love to come to the pub but I haven't got any goolies." "Quid" is the modern word for what was once called a "shilling"-the equivalent of seventeen cents American. Underpants are called "wellies" and friends are called "tossers." If you are fond of someone, you should tell him he is a "great tosser"-he will be touched. The English are a notoriously demonstrative, tactile people, and if you want to fit in you should hold hands with your acquaintances and tossers when you walk down the street. Public nuzzling and licking are also encouraged, but only between people of the same sex.
Ever since their Tory government wholeheartedly embraced full union with Europe, we Brits have been attempting to adopt certain continental customs, such as the large midday meal followed by a two or three hour siesta, which we call a "****." As this is still a fairly new practice in Britain, it is not uncommon for people to oversleep (alarm clocks, alas, do not work there due to the magnetic pull from Greenwich). If you are late for supper, simply apologize and explain that you were having a ****-everyone will understand and forgive you.
University archives and manuscript collections are still governed by quaint medieval rules retained out of respect for tradition; hence patrons are expected to bring to the reading rooms their own ink-pots and a small knife for sharpening their pens. Observing these customs will signal the librarians that you are "in the know"-one of the inner circle, as it were, for the rules are unwritten and not posted anywhere in the library. Likewise, it is customary to kiss the librarian on both cheeks when he brings a manuscript you've requested, a practice dating back to the reign of Henry VI.
One of the most delightful ways to spend an afternoon in Oxford or Cambridge is gliding gently down the river in one of their flat- bottomed boats, which you propel using a long pole. This is known as "cottaging." Many of the boats (called "yer-i-nals") are privately owned by the colleges, but there are some places that rent them to the public by the hour. Just tell a professor or policeman that you are interested in doing some cottaging and would like to know where the public yerinals are. The poles must be treated with lubricant to protect them from the water, so it's a good idea to buy a jar of Vaseline and have it on you when you ask directions to the yerinals. That way people will know you are an experienced cottager.
British cuisine enjoys a well deserved reputation as the most sublime gastronomic pleasure available to man. Thanks to today's robust dollar, the American traveller can easily afford to dine out several times a week (rest assured that a British meal is worth interrupting your afternoon **** for). Few foreigners are aware that there are several grades of meat in the UK. The best cuts of meat, like the best bottles of gin, bear Her Majesty's seal, called the British Stamp of Excellence (BSE). When you go to a fine restaurant, tell your waiter you want BSE beef and won't settle for anything less. If he balks at your request, custom dictates that you jerk your head imperiously back and forth while rolling your eyes to show him who is boss. Once the waiter realizes you are a person of discriminating taste, he may offer to let you peruse the restaurant's list of exquisite British wines. If he doesn't, you should order one anyway. The best wine grapes grow on the steep, chalky hillsides of Yorkshire and East Anglia-try an Ely '84 or Ripon '88 for a rare treat indeed. When the bill for your meal comes it will show a suggested amount. Pay whatever you think is fair, unless you plan to dine there again, in which case you should simply walk out; the restaurant host will understand that he should run a tab for you.
Public taxis are subsidized by the Her Majesty's Government. A taxi ride in London costs two pounds, no matter how far you travel. If a taxi driver tries to overcharge you, you should yell "I think not, you charlatan!", then grab the nearest bobby and have the driver arrested. It is rarely necessary to take a taxi, though, since bus drivers are required to make detours at patrons' requests. Just board any bus, pay your fare of three pence (the heavy gold-coloured coins are "pence"), and state your destination clearly to the driver, e.g.: "Please take me to the British Library." A driver will frequently try to have a bit of harmless fun by pretending he doesn't go to your requested destination. Ignore him, as he is onl