This is a linked buy and depends on the stock in your store but anyway....
650ml fairy liquid has a £2 off fairy platinum dishwasher tabs coupon on it,costs 1.00 down from 1.35
Fairy Platinum 22pk currently halfprice, costing 3.39 down 6.78.
take coupons off, buy both for 3.39+1.00-2.00=2.39 = bargain, these tablets are great as well.
(not sure what i am going to do with all the fairy liquid but with this deal almost ok to waste)
The offer is obviously limited to the number of coupons available on bottles but both my locals have been packed with them.
Obviously if you are a scumbag you could just yoink the coupons off and get the packs for 1.39 but thats akin to robbery imo.