Changes

Public transport ([http://www.tfl.gov.uk/ Transport for London]) is ridiculosly ridiculously expensive in London and there are plenty of ways to avoid paying for it (of course it's at your own risk!). Look out for the new bendy buses, where you dont have to pay the driver. As for travelcards you can buy a child one for £2 (at time of writing), which will get you through barriers on the tube. In the evenings you can often pick them up off the floor outside stations or buy them from a tout for a pound or two. At British Rail stations you can often buy a 'permit to travel' for 5p when the ticket office is closed, which means if you get caught you will only be charged the fare of your journey and not fined.  The best option is to get yourself a '''Oyster Card''' for London which gives you access to all public transport within London for 50% of the price. The Oyster card is basically a top-up plastic card that you get for 3 pounds (refundable when you return the card) top-up with the amount you wish and then use as a check-in/check-out to get through the gates while the money is deduced according to the distance you travelled. As an 'intelligent system' it will always calculate the lowest fare for you during the day and you can never end up paying more than a normal day ticket at the last.