12+ Tips and Tricks to Work Faster in Microsoft Outlook - There are a few on here that would be helpful.
The Best Microsoft Outlook 2013 Tips and Tricks to Increase Productivity
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In Microsoft Outlook, quickly add dates and times to your appointments. For more Microsoft Outlook tips, please visit http://www.stonemoor.co.uk/admin-tips/microsoft-office-tips-and-tricks/microsoft-outlook-tips/
10 tips for mastering Microsoft Outlook 2013 | PCWorld