Link to 8Coupons (http://bit.ly/aQ46aK). This is from the US (home of the coupon), where a simple and effective mapping interface shows you all the coupon offers near your location.
Sharable, printable, textable (show to cashier) coupons that are easy to find, and easy to use. As coupons become more and more a reliable and expected way of driving store traffic in the UK, the next time you find yourself in a city centre and aren’t sure where to have lunch, a version of this sort of site might help you decide.
Good write up here from ReadWriteWeb