You most likely know that you can sort items in Outlook by clicking the column title in the message pane. A second click of the same column toggles between ascending and descending sorts.

What you may not be aware of is that Outlook isn’t limited to single column sorting. To create a secondary sort, first create the primary sort by clicking the header of the principal column. Then, hold down the [Shift] key and click the header in the column that will be the secondary sort criteria. This can be used to easily locate e-mail without utilizing the search function: for example, a secondary sort based on Subject or Size within a primary sort by “To” can greatly simplify locating a specific e-mail, particularly from a Sender with whom you frequently correspond.