I don’t especially like them, but I was curious about Tesco’s strange pricing policy in regard to Cream Eggs. Maybe it’s to disincentivise us and thus prevent us making ourselves sick.
So you can buy 3 for 99p:

Get a 3 “pack” for £1.02:

Or if you want 6 it’ll cost you £2.07:

Each time, it’s more expensive than the last – very clever.