I've just picked up a flyer from Supersol which has 1 Litre Bottles of San Miguel for only 1 euro.  The deal runs from 6th to 19th November 2013 and is presumably available in all branches of Supersol.  I've seen this deal quite regularly at Supersol.  I'm not a fan of San Miguel personally, but it's one of Spain's most popular beers, so who am I to argue?!

Supersol are also selling 1.1 Litre bottles of Cruzcampo for €1.15, which is also a pretty good deal.  Again, this offer is from 6th to 19th November 2013.

So maybe a good opportunity to stock up on cheap beer for the Christmas period?