Whenever I had these they would all be stuck together.
My local Post Office shop is exactly the same! Even the shop assistant (who was an old lady in the 70s) is still working there.
At the one closest to my work you can still buy toy water pistols and the like for £1. They also have a delightful accessory rack called 'Jewlz' with all manner of costume jewellery and hair accessories, with colour coded price stickers - 99p, £1.99 or for those days when you can't help splashing out. £2.99!