Asda in GRIMSBY has about 200 6 packs of Heinz Baked Beans. These are 4 packs with 2 extra free tins. The price has been put down to £2/pack.
It does look like they are getting rid of promotional packs but get it whilst you can.
Not as good as the recent LIDL offer (http://www.hotukdeals.com/deals/heinz-baked-beans-6-pack-4-2-free-f/733479) but still under 34p/tin.