Expedia is a competitive place to check for hotels, flights and package holidays. Now and again they mail out further discounts off their prices in the form of an "Expedia redemption code" (basically a voucher code). When I receive wind of these codes, I'll link to them on this thread.
The first code should give you £10 off a hotel booking with Expedia UK over the value of £150 and is valid until December 31st. Apparently the voucher is no good for the following chains - Harrahs, MGM, Starwood, Novotel, Sol Melia, Rezidor, Hilton Hotels, Intercontinental Hotel Group or Marriott - but give it a whirl anyway - you never know!
The code is here: Expedia Redemption Code