£5 for a voucher worth £50 to spend on a holiday from lastminute.com, purchased through Wowcher. Also available is £10 for a £75 voucher, but this voucher can only be used on holidays of 7 days or more.
The booking must be found in the "holidays" section of lastminute, must include a flight & accommodation. The holiday must be booked by 13th August 2014 but it valid on holidays up to 31st May 2015. Minimum 2 adults per booking, and only 1 voucher can be used at a time.
Thought this was pretty good!