It can't get simpler than this: Drag the "Email" to the "Tasks" Tab that you can find in Bottom Left corner. What I like about it is that It let's to specify start date, end date, priority, status, reminders. Just wonderful! I have been using it for a week now and I was wondering why didn't I do it before. Do you use it? Also, do share other amazing outlook tips!
General Technology Tips · Outlook Tips · · ·
Blog Post on the Topic: http://parasdoshi.com/2012/09/21/productivity-tip-convert-emails-to-tasks-or-prioritized-to-do-list-in-outlook-2010/