A method of providing a reminder of a task to be performed at a task location is disclosed herein. The method includes receiving a location of a user via a mobile communication device associated with the user at predetermined time intervals for tracking historical travel information of the user. The method includes receiving user specified task information that includes a task and a task location. The method includes storing the user specified task information. The method includes generating a reminder for the task based on a comparison of an estimated probability of the user traveling in a trajectory leading toward the task location and an estimated probability of the user traveling in a trajectory leading away from the task location.