A method of providing an incentive for crushing containers prior to disposal by providing a reward for doing so. When a container is substantially crushed a code on the container that was previously unreadable is caused to be readable by a code reading means. In response to reading the code by the code reading means, a reward is provided. The container may be disposed of in a disposal means. The disposal means may include the code reading means and provide the reward. Alternatively the code reading means may be provided, for example, on a mobile phone or other device. The reward may be any item of value such as a prize, token, money, account credit or voucher, for example.