Thorntons Chocolates are currently offering 'Buy One Get One Free' on a range of chocolates at their website.
But if you go to the checkout and use the code ' TF51' then you will get an additional 20% off.
Delivery is only £1.95
Plus you can also get 8% cashback at Quidco
Worked for me hope it works for you too.
The discount code expires 19 June 2011 .