Pear Kopparberg bottles 99p each.
Found these in the Bootle New Strand, Liverpool store. This may be store specific as I haven't had chance to check others. However, at 99p its hard to go wrong if you live close to this store. There were plenty available as they had their own shelf and I only bought 5, not being greedy.
Also this is my first post but I'm sure you will let me know if I have done anything wrong.