>Hi!
>
>Say I've got a list of calls I want to make in a day.
>
>Say I have ten calls, I want to work out every combination of order of visits.
>
>Has anyone any ideas on how I would achieve this?
>
>Any help extremley appreciated

Do you want to make these calls randomly? E.g. it doesn't matter which call is going to be first, which next, etc.?