Nice surprise that Sainsbury's are actually the cheapest at the mo for Chestnut Mushrooms, at 90p.
50p cashback available on Green jinn shopping app, making the mushrooms 40p after cashback!
New shopping app, at present, iPhone only, sorry. May install on iPad also?
There's lots of fresh produce on there, it's apparently a cashback app aimed at healthy eating. I'm sure I saw some chocolate biscuits on there though, ha .
App available from App Store http://www.greenjinn.com/#get-early-access