title: What is the best way to create a reminder service in .Net?
body: <p>I am looking to build a web application that will allow users to manage simple tasks or todos. As part of this, I'd like to send users email reminders daily of their tasks. I'd like each user in the system to specify what time of day they get their reminder, though. For example, one user can specify to get their emails at 8AM while another user might choose to get their emails at 7PM. Using .Net, what is the best way to architect and build this "reminder" service? Also, as a future phase to this, I'd like to expand the reminders to SMS text and/or other forms of notification.</p>
  
  <p>Any guidance would be appreciated.</p>