Usually on offer these are 3 for £3 or £1 each, reduced down from £1.39 a pack, but today i bought a few packs for £1.39 each, but they were on BOGOF offer. All varieties (Orange, Mint, original etc). I personally love the mint ones. Sorry if its been posted before, i checked but couldnt find it. Also it may be available online as well, not sure.
If you dont like Club, then theres also a deal on Kit Kat (9 packs), all varieties, 2 x 9 packs for £2, also at tescos.