You can change the time increments shown in your Outlook calendar to allow for smaller more detailed calendar entries. This will work in Outlook 2003, Outlook 2007, and Outlook 2010.
Aero Snap lets you resize a window by dragging it to the edge of the screen. Aero Shake allows you to minimize all other windows by shaking an open window. These features may be useful to some and a problem for others. You can quickly disable these two features.