Eat Club biscuits/KitKats/plain Bounties and the like by biting off all the surrounding chocolate and eating that first. With Penguins/custard creams/Twix and the like, split them in half long ways and eat the side without filling on first, maybe dunk it if having a cuppa alongside, sometimes scrape filling off with teeth so can dunk the other part. Clubs and KitKats used to have really thick chocolate ends. Like many things, they are a shadow of their former selves. How much smaller can they get??