In a nutshell, convenience, cost effectiveness and efficiency. An experienced domestic couple will be able to cover all areas of the house and grounds as a team, they will be used to working together to ensure that the house and grounds run smoothly. They will not be in competition with each other and will communicate well and are generally willing to assist in each other’s areas to ensure that all jobs are completed. For example the ‘outside’ person will be able to cover heavy cleaning duties such as moving cumbersome pieces of furniture or cleaning chandeliers, they may also be able to help serve at table, if this is required. By the same token, the ‘inside’ person will often be able to support in some outside tasks such as light gardening or keeping pathways swept.