Instructions:1. Go to http://www.opodo.co.uk and search for your hotel stay
2. Enter the code "opodohotel" in the promo codes box to take off £20 hotel stays totalling more than £250.
The offer ends 10 February 2010, but can be used on hotels for any date.
There's also a voucher for £20 off your flight if over £200 - "opodo20".