Earlier years I used Microsoft Outlook and when I shifted to Mac, I migrated MS Outlook to MS Entourage. All in all, ten years of Microsoft Office slavery. Over the years, I slowly moved away from Microsoft products and moving my data to other platforms. The toughest of all migration was moving away from Microsoft Entourage.
Finally, this day, I decided and migrated to Apple Mail and iCal, replacing MS Entourage. Replacing MS Word, Excel, Powerpoint with Apple Pages, Numbers and Keynote respectively.