Date tickler system

Simple reminder system that allows a task or reminder to be set for any order and/or resource (or other object). Ticklers would be assigned/linked to resources, assigned to people (i.e. email addresses or user accounts) and include trigger dates and times. Include a mechanism for staff to view any outstanding (or upcoming) tasks or reminders. (Note: this could be tied to a more sophisticated workflow management solution, or it could be a separate feature for those that don't need the more sophisticated system.)