How to get a list of users sorted by their mailbox sizes in Exchange 2007

You can simply run this command from the Microsoft Exchange Management Console to show you what your mailboxes are using in a readable format.  Without the specified options below the formatting can be hard to read.

Get-MailboxStatistics | Sort-Object TotalItemSize -Descending | ft DisplayName,@{label=”TotalItemSize(KB)”;expression={$_.TotalItemSize.Value.ToKB()}},ItemCount