Kit Kat is a classic favourite for lots of people, with it's sweet, crunchy wafer pieces covered in a smooth, milk chocolate coating. It comes in a variety of different sizes, from large made for sharing with others, to the smaller, treat sized in the share packs. I find the share packs in particular are great value, especially when on special or price promotion. Kit Kat can be found in just about any supermarket and store that sells chocolate.