Ashtons Coffee Shop on Town Square in Crediton will give you used the coffee grounds from their coffee machine if you take in an empty container. They also leave containers of coffee grounds outside their main door for people to take away. If they are spread in a circle around vulnerable garden plants they really deter slugs and snails from crossing and are good for the soil too. If you use 'real' coffee at home why not use your coffee grounds in this way too?