Great deal on the excellent Virgin Trains. My tip is always go for weekday evening services if possible as you get lots of free booze from a wide selection, a wrap/sandwich + other food + can ask for as much as you want. You also get use of the lounges if you go from a station with them, lots of nice free food+drink, I got chillli+lime popcorn the other day. Book by 18 November for travel 7 December 2013 – 19 January 2014. Sadly railcard discounts don't apply.