I hate a cluttered taskbar, which is why I love this tip so much!
By default when Microsoft Outlook is open, an icon appears in the system tray and another on the taskbar. I don’t need two and would much rather reclaim that taskbar space. Fortunately, you can easily change the default so an icon only appears in the system tray.
To minimize Outlook 2010 to the system tray, simply right-click the Outlook icon within the system tray and select the Hide When Minimized option.