Based on the provided domain name, eaousewashesbanks.co.uk, it is difficult to determine its exact purpose. However, one possible use for this domain could be a website or online platform related to the cleaning or maintenance of banks. The term "eaousewashesbanks" suggests a service or business that specializes in cleaning or washing banks (possibly referring to the exterior surfaces of bank buildings). It could also be used for other related services such as janitorial services targeting financial institutions or a consultancy firm offering advice on security measures for banks. Without more information, these are speculative possibilities.