Outlook has a built in calendar that you can use to keep track of your appointments.  You can add appointments in Outlook to remind you of your doctor's appointment, a business meeting, or any other event that you want to add to your Outlook calendar.

Outlook 2007

1. On the File menu, point to New and then click on Appointment
2. In the Subject box, type in a description for your appointment
3. Under Location, type where the appointment is
4. Enter in the start and end times of the appointment
5. If needed for this appointment, you can also set the appointment to be recurring by clicking on the Recurrence button
6. Click OK
7. Finally, on the Appointment tab in the Actions group, click Save & Close

Outlook 2010

1. Select the Home tab and in the New group click New Appointment. This will bring up the New Appointment screen.
2. In the Subject box, type in a description for your appointment
3. Under Location, type where the appointment is
4. Enter in the start and end times of the appointment
5. Click on Save and your appointment is now created