Always waiting for when this deal comes up, as it makes many (perhaps most!) organic products cheaper than their non-organic counterparts at Tesco - if you want 3 of that item anyway!
Avoid possible exposure to harmful pesticides and other chemicals, whilst at the same time benefiting from a higher nutrient content and, in my opinion only, superior taste.
Any 3 for 2 - so can mix and match.
Cheapest product free - so be sure to do a separate transaction for each group of 3 similarly priced items in the offer if you want to maximise your saving!