Instructions:If you listen to the radio in Oxford, there are two radio stations (that actually come out of the same building) that are both doing a meal deal every Thursday.
Basically, you buy a voucher and it's worth double what you spend.
So, Jack FM - you buy a voucher for £25 and you get £50 worth of food - they do nice upscale local restaurants, the list is here:
On FM107.9 - you buy a voucher for £20 and it's worth £40 - their deal is called 'Grub Club', and tends to be nice restaurants, if a bit cheaper - like 'GBK' and local curry restaurants
They go on sale every Thursday from 8am - the local restaurants get advertising without having to spend money, and the stations get money from the vouchers - it's a nice way to save some money and support local business.
There aren't any catches, you are asked to book ahead, but I've just turned up with the vouchers and had no trouble. There's only a few weeks left, but this is the second thime they've done this offer - and it seems to sell out, so they'll probably do it again.