We have a wide range of fruit, 5ish different types of chocolate biscuit bars, I let them pick two choice of crisps each per week, 5ish choices of cereal bars, sugar waffles, chocolate coated waffles, variety of brioche, brownies, flapjacks, Galaxy ripples, Cadbury Caramels, chocolate finger multipack, 3/4 types of biscuits, jelly pots, yogurt, dried fruit, select of ice cream treats.
None of that, apart from the fruit and yoghurt. And I only buy large amounts of cheaper fruit (bananas, apples etc). Once the nice berries, peaches etc have gone they have gone. We make our own flapjacks, so they are very cheap. When the kids were at home we had some nak'd bars, and some fancy ice cream. But again, limited amounts and once it had gone it had gone. I tended to direct them to toast, cereal or bananas if they were hungry!