My local Londis store, on the world famous Penny Lane itself, stocks a good selection of German bottled beers which are not the sort you see in the supermarkets. It does a 3 bottles for £11 offer, which is far too good to turn down.
It is a bit hit and miss but I have had some good beers. I particularly like the dunkel and bock styles.
Currently supping a pint of Theakstons Old Peculier for “free” in my local pub. It has a loyalty card scheme, whereby after you have bought eight pints you get the ninth for “free”.
They charge £4.40 a pint on the cask beers, irrespective of ABV. That is slightly more pricey than standard strength beers cost around here, so I suppose the “free” offer has to be seen in that light. But it is still not bad.