Don't forget to claim for your VAT refund if you're visiting from a non-EU country.
If you are visiting from a non-European Union country, you can reclaim the sales tax (VAT) on purchases from a number of British retailers.
If you buy from shops displaying the Tax Free Shopping sign you will be given a tax refund form at the shop – keep it along with your receipt. Then, when you get to the airport, take your receipt and form to the Moneycorp counter – and they will pay your tax refund in cash.
You can even have your refund paid in your own currency – just ask when you get to the desk.