The hard numbers behind our four months in London:
Electricity: We averaged about £40 per month, including television usage.
Television: A television licence cost us £29.10 per month
Entertainment: Our entertainment costs averaged £55 per month. This included Buckingham Palace, Zoo Lates, outdoor film screenings, and an Elton John concert (and festival).
Travel: We averaged £370 per month. This included our weekly Oyster card top-up (£28 per person for unlimited travel, Zones 1-2) plus our train rides to Eastbourne, Oxford, Hatfield, Brighton, and Bath.
Food: We went out a lot, especially during the last half of the summer. We averaged £475 per month on dining out costs (including pints) and £160 per month on groceries.