This Samsung Galaxy S4 contract deal is out of stock online (unsurprisingly), but you might be able to find it in-store at your local Tesco.
The contract price is down from £18.99 to £13.99 (a saving of £120 over two years), and you get 100 minutes, unlimited texts and 1GB per month on T-Mobile. With no up-front cost, that's £335.76 total.
Applies to Samsung Galaxy S4 in Black Mist and White Frost.
Samsung Galaxy S4 contract deal in-store @ Tesco
(Thanks to mrke at HUKD)