Aero chocolate bars 5 pack with 2 free making it 7 Aeros for £1. Also included in the offer are the following -
Kit Kat chunky (5 pack + 2 free) (thanks bfcuk)
Kit Kat 4 finger
Kit Kat Senses Caramel
Mars and Snickers Bars (thanks StevenA2000_uk)
These are all 5 packs but still a bargain for only £1. Apologies if this has been posted elsewhere, I couldnt see it mentioned.
Mars Bars and Snickers Bars were £1 a pack as well when I was in today (31/01/2011)