The soft materials colloquially known as goo turn up all over the place in our everyday lives, from food to playthings, from glues to medical ointments. But what leads to this 'gooiness'? There are many words to describe the consistency of these materials ranging from runny to viscous, sticky and spreadable. I will describe why it is that long chain molecules (polymers) can be used to make these materials, why they have the effect they have, and how understanding them can be powerful for creating new medical treatments, help to understand why shampoos don't simply roll off our hair and down the drain and control the way we appreciate food as we eat it. And all this lies in the domain of the physicist!