Found 8th Feb
Tins of Whiskas in jelly, 2 for £1 (it's poundland - what can I tell ya haha). Not in all stores (mine is Chesterfield town centre). They fly off the shelves (it's what chickens try to do haha...). They have now been selling them for 2 or 3 weeks. I waited to post this in case it was a very short or one-off deal, but they sell out very quickly. However, because it's such a small store with no stock room, sometimes they are on the top shelf in cardboard boxes. So if they aren't on the shelf, ask in case they haven't restocked the shelf. They also have Felix, so you can "mix and match".